move psp functions to psp.c and remove the ifdefs

ok bluhm@ hshoexer@

4 files changed, 917 insertions, 890 deletions

diff --git a/sys/dev/ic/ccp.c b/sys/dev/ic/ccp.c
index 42ae5f8e7c2..024291c86cc 100644
--- a/sys/dev/ic/ccp.c
+++ b/sys/dev/ic/ccp.c
@@ -1,8 +1,7 @@
-/*	$OpenBSD: ccp.c,v 1.9 2024/09/01 19:25:06 bluhm Exp $ */
+/*	$OpenBSD: ccp.c,v 1.10 2024/09/03 00:23:05 jsg Exp $ */
 
 /*
  * Copyright (c) 2018 David Gwynne <dlg@openbsd.org>
- * Copyright (c) 2023, 2024 Hans-Joerg Hoexer <hshoexer@genua.de>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -19,21 +18,11 @@
 
 #include <sys/param.h>
 #include <sys/systm.h>
-#include <sys/buf.h>
 #include <sys/device.h>
-#include <sys/malloc.h>
-#include <sys/kernel.h>
 #include <sys/timeout.h>
-#include <sys/pledge.h>
 
 #include <machine/bus.h>
 
-#ifdef __amd64__
-#include <sys/proc.h>
-#include <uvm/uvm.h>
-#include <crypto/xform.h>
-#endif
-
 #include <dev/ic/ccpvar.h>
 
 #define CCP_REG_TRNG		0xc
@@ -46,13 +35,6 @@ struct cfdriver ccp_cd = {
 	DV_DULL
 };
 
-#ifdef __amd64__
-struct ccp_softc *ccp_softc;
-
-int	psp_get_pstatus(struct psp_platform_status *);
-int	psp_init(struct psp_init *);
-#endif
-
 void
 ccp_attach(struct ccp_softc *sc)
 {
@@ -77,627 +59,3 @@ ccp_rng(void *arg)
 
 	timeout_add_msec(&sc->sc_tick, 100);
 }
-
-#ifdef __amd64__
-int
-psp_sev_intr(struct ccp_softc *sc, uint32_t status)
-{
-	if (!(status & PSP_CMDRESP_COMPLETE))
-		return (0);
-
-	wakeup(sc);
-
-	return (1);
-}
-
-int
-psp_attach(struct ccp_softc *sc)
-{
-	struct psp_platform_status	pst;
-	struct psp_init			init;
-	size_t				size;
-	int				nsegs;
-
-	if (!(sc->sc_capabilities & PSP_CAP_SEV))
-		return (0);
-
-	rw_init(&sc->sc_lock, "ccp_lock");
-
-	/* create and map SEV command buffer */
-	sc->sc_cmd_size = size = PAGE_SIZE;
-	if (bus_dmamap_create(sc->sc_dmat, size, 1, size, 0,
-	    BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW | BUS_DMA_64BIT,
-	    &sc->sc_cmd_map) != 0)
-		return (0);
-
-	if (bus_dmamem_alloc(sc->sc_dmat, size, 0, 0, &sc->sc_cmd_seg, 1,
-	    &nsegs, BUS_DMA_WAITOK | BUS_DMA_ZERO) != 0)
-		goto fail_0;
-
-	if (bus_dmamem_map(sc->sc_dmat, &sc->sc_cmd_seg, nsegs, size,
-	    &sc->sc_cmd_kva, BUS_DMA_WAITOK) != 0)
-		goto fail_1;
-
-	if (bus_dmamap_load(sc->sc_dmat, sc->sc_cmd_map, sc->sc_cmd_kva,
-	    size, NULL, BUS_DMA_WAITOK) != 0)
-		goto fail_2;
-
-	sc->sc_sev_intr = psp_sev_intr;
-	ccp_softc = sc;
-
-	if (psp_get_pstatus(&pst) || pst.state != 0)
-		goto fail_3;
-
-	/*
-         * create and map Trusted Memory Region (TMR); size 1 Mbyte,
-         * needs to be aligned to 1 Mbyte.
-	 */
-	sc->sc_tmr_size = size = PSP_TMR_SIZE;
-	if (bus_dmamap_create(sc->sc_dmat, size, 1, size, 0,
-	    BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW | BUS_DMA_64BIT,
-	    &sc->sc_tmr_map) != 0)
-		goto fail_3;
-
-	if (bus_dmamem_alloc(sc->sc_dmat, size, size, 0, &sc->sc_tmr_seg, 1,
-	    &nsegs, BUS_DMA_WAITOK | BUS_DMA_ZERO) != 0)
-		goto fail_4;
-
-	if (bus_dmamem_map(sc->sc_dmat, &sc->sc_tmr_seg, nsegs, size,
-	    &sc->sc_tmr_kva, BUS_DMA_WAITOK) != 0)
-		goto fail_5;
-
-	if (bus_dmamap_load(sc->sc_dmat, sc->sc_tmr_map, sc->sc_tmr_kva,
-	    size, NULL, BUS_DMA_WAITOK) != 0)
-		goto fail_6;
-
-	memset(&init, 0, sizeof(init));
-	init.enable_es = 1;
-	init.tmr_length = PSP_TMR_SIZE;
-	init.tmr_paddr = sc->sc_tmr_map->dm_segs[0].ds_addr;
-	if (psp_init(&init))
-		goto fail_7;
-
-	printf(", SEV");
-
-	psp_get_pstatus(&pst);
-	if ((pst.state == 1) && (pst.cfges_build & 0x1))
-		printf(", SEV-ES");
-
-	sc->sc_psp_attached = 1;
-
-	return (1);
-
-fail_7:
-	bus_dmamap_unload(sc->sc_dmat, sc->sc_tmr_map);
-fail_6:
-	bus_dmamem_unmap(sc->sc_dmat, sc->sc_tmr_kva, size);
-fail_5:
-	bus_dmamem_free(sc->sc_dmat, &sc->sc_tmr_seg, 1);
-fail_4:
-	bus_dmamap_destroy(sc->sc_dmat, sc->sc_tmr_map);
-fail_3:
-	bus_dmamap_unload(sc->sc_dmat, sc->sc_cmd_map);
-fail_2:
-	bus_dmamem_unmap(sc->sc_dmat, sc->sc_cmd_kva, size);
-fail_1:
-	bus_dmamem_free(sc->sc_dmat, &sc->sc_cmd_seg, 1);
-fail_0:
-	bus_dmamap_destroy(sc->sc_dmat, sc->sc_cmd_map);
-
-	ccp_softc = NULL;
-	sc->sc_psp_attached = -1;
-
-	return (0);
-}
-
-static int
-ccp_wait(struct ccp_softc *sc, uint32_t *status, int poll)
-{
-	uint32_t	cmdword;
-	int		count;
-
-	if (poll) {
-		count = 0;
-		while (count++ < 10) {
-			cmdword = bus_space_read_4(sc->sc_iot, sc->sc_ioh,
-			    PSP_REG_CMDRESP);
-			if (cmdword & PSP_CMDRESP_RESPONSE)
-				goto done;
-			delay(5000);
-		}
-
-		/* timeout */
-		return (1);
-	}
-
-	if (tsleep_nsec(sc, PWAIT, "psp", SEC_TO_NSEC(1)) == EWOULDBLOCK)
-		return (1);
-
-done:
-	if (status) {
-		*status = bus_space_read_4(sc->sc_iot, sc->sc_ioh,
-		    PSP_REG_CMDRESP);
-	}
-
-	return (0);
-}
-
-static int
-ccp_docmd(struct ccp_softc *sc, int cmd, uint64_t paddr)
-{
-	uint32_t	plo, phi, cmdword, status;
-
-	plo = ((paddr >> 0) & 0xffffffff);
-	phi = ((paddr >> 32) & 0xffffffff);
-	cmdword = (cmd & 0x3ff) << 16;
-	if (!cold)
-		cmdword |= PSP_CMDRESP_IOC;
-
-	bus_space_write_4(sc->sc_iot, sc->sc_ioh, PSP_REG_ADDRLO, plo);
-	bus_space_write_4(sc->sc_iot, sc->sc_ioh, PSP_REG_ADDRHI, phi);
-	bus_space_write_4(sc->sc_iot, sc->sc_ioh, PSP_REG_CMDRESP, cmdword);
-
-	if (ccp_wait(sc, &status, cold))
-		return (1);
-
-	/* Did PSP sent a response code? */
-	if (status & PSP_CMDRESP_RESPONSE) {
-		if ((status & PSP_STATUS_MASK) != PSP_STATUS_SUCCESS)
-			return (1);
-	}
-
-	return (0);
-}
-
-int
-psp_init(struct psp_init *uinit)
-{
-	struct ccp_softc	*sc = ccp_softc;
-	struct psp_init		*init;
-	int			 ret;
-
-	init = (struct psp_init *)sc->sc_cmd_kva;
-	bzero(init, sizeof(*init));
-
-	init->enable_es = uinit->enable_es;
-	init->tmr_paddr = uinit->tmr_paddr;
-	init->tmr_length = uinit->tmr_length;
-
-	ret = ccp_docmd(sc, PSP_CMD_INIT, sc->sc_cmd_map->dm_segs[0].ds_addr);
-	if (ret != 0)
-		return (EIO);
-
-	wbinvd_on_all_cpus();
-
-	return (0);
-}
-
-int
-psp_get_pstatus(struct psp_platform_status *ustatus)
-{
-	struct ccp_softc	*sc = ccp_softc;
-	struct psp_platform_status *status;
-	int			 ret;
-
-	status = (struct psp_platform_status *)sc->sc_cmd_kva;
-	bzero(status, sizeof(*status));
-
-	ret = ccp_docmd(sc, PSP_CMD_PLATFORMSTATUS,
-	    sc->sc_cmd_map->dm_segs[0].ds_addr);
-
-	if (ret != 0)
-		return (EIO);
-
-	bcopy(status, ustatus, sizeof(*ustatus));
-
-	return (0);
-}
-
-int
-psp_df_flush(void)
-{
-	struct ccp_softc	*sc = ccp_softc;
-	int			 ret;
-
-	wbinvd_on_all_cpus();
-
-	ret = ccp_docmd(sc, PSP_CMD_DF_FLUSH, 0x0);
-
-	if (ret != 0)
-		return (EIO);
-
-	return (0);
-}
-
-int
-psp_decommission(struct psp_decommission *udecom)
-{
-	struct ccp_softc	*sc = ccp_softc;
-	struct psp_decommission	*decom;
-	int			 ret;
-
-	decom = (struct psp_decommission *)sc->sc_cmd_kva;
-	bzero(decom, sizeof(*decom));
-
-	decom->handle = udecom->handle;
-
-	ret = ccp_docmd(sc, PSP_CMD_DECOMMISSION,
-	    sc->sc_cmd_map->dm_segs[0].ds_addr);
-
-	if (ret != 0)
-		return (EIO);
-
-	return (0);
-}
-
-int
-psp_get_gstatus(struct psp_guest_status *ustatus)
-{
-	struct ccp_softc	*sc = ccp_softc;
-	struct psp_guest_status	*status;
-	int			 ret;
-
-	status = (struct psp_guest_status *)sc->sc_cmd_kva;
-	bzero(status, sizeof(*status));
-
-	status->handle = ustatus->handle;
-
-	ret = ccp_docmd(sc, PSP_CMD_GUESTSTATUS,
-	    sc->sc_cmd_map->dm_segs[0].ds_addr);
-
-	if (ret != 0)
-		return (EIO);
-
-	ustatus->policy = status->policy;
-	ustatus->asid = status->asid;
-	ustatus->state = status->state;
-
-	return (0);
-}
-
-int
-psp_launch_start(struct psp_launch_start *ustart)
-{
-	struct ccp_softc	*sc = ccp_softc;
-	struct psp_launch_start	*start;
-	int			 ret;
-
-	start = (struct psp_launch_start *)sc->sc_cmd_kva;
-	bzero(start, sizeof(*start));
-
-	start->handle = ustart->handle;
-	start->policy = ustart->policy;
-
-	ret = ccp_docmd(sc, PSP_CMD_LAUNCH_START,
-	    sc->sc_cmd_map->dm_segs[0].ds_addr);
-
-	if (ret != 0)
-		return (EIO);
-
-	/* If requested, return new handle. */
-	if (ustart->handle == 0)
-		ustart->handle = start->handle;
-
-	return (0);
-}
-
-int
-psp_launch_update_data(struct psp_launch_update_data *ulud, struct proc *p)
-{
-	struct ccp_softc		*sc = ccp_softc;
-	struct psp_launch_update_data	*ludata;
-	pmap_t				 pmap;
-	vaddr_t				 v, next, end;
-	size_t				 size, len, off;
-	int				 ret;
-
-	/* Ensure AES_XTS_BLOCKSIZE alignment and multiplicity. */
-	if ((ulud->paddr & (AES_XTS_BLOCKSIZE - 1)) != 0 ||
-	    (ulud->length % AES_XTS_BLOCKSIZE) != 0)
-		return (EINVAL);
-
-	ludata = (struct psp_launch_update_data *)sc->sc_cmd_kva;
-	bzero(ludata, sizeof(*ludata));
-
-	ludata->handle = ulud->handle;
-
-	/* Drain caches before we encrypt memory. */
-	wbinvd_on_all_cpus();
-
-	/*
-	 * Launch update one physical page at a time.  We could
-	 * optimise this for contiguous pages of physical memory.
-	 *
-	 * vmd(8) provides the guest physical address, thus convert
-	 * to system physical address.
-	 */
-	pmap = vm_map_pmap(&p->p_vmspace->vm_map);
-	size = ulud->length;
-	end = ulud->paddr + ulud->length;
-	for (v = ulud->paddr; v < end; v = next) {
-		off = v & PAGE_MASK;
-
-		len = MIN(PAGE_SIZE - off, size);
-
-		/* Wire mapping. */
-		if (uvm_map_pageable(&p->p_vmspace->vm_map, v, v+len, FALSE, 0))
-			return (EINVAL);
-		if (!pmap_extract(pmap, v, (paddr_t *)&ludata->paddr))
-			return (EINVAL);
-		ludata->length = len;
-
-		ret = ccp_docmd(sc, PSP_CMD_LAUNCH_UPDATE_DATA,
-		    sc->sc_cmd_map->dm_segs[0].ds_addr);
-
-		if (ret != 0)
-			return (EIO);
-
-		size -= len;
-		next = v + len;
-	}
-
-	return (0);
-}
-
-int
-psp_launch_measure(struct psp_launch_measure *ulm)
-{
-	struct psp_launch_measure *lm;
-	struct ccp_softc	*sc = ccp_softc;
-	int			 ret;
-	uint64_t		 paddr;
-
-	if (ulm->measure_len != sizeof(ulm->psp_measure))
-		return (EINVAL);
-
-	lm = (struct psp_launch_measure *)sc->sc_cmd_kva;
-	bzero(lm, sizeof(*lm));
-
-	lm->handle = ulm->handle;
-	paddr = sc->sc_cmd_map->dm_segs[0].ds_addr;
-	lm->measure_paddr =
-	    paddr + offsetof(struct psp_launch_measure, psp_measure);
-	lm->measure_len = sizeof(lm->psp_measure);
-
-	ret = ccp_docmd(sc, PSP_CMD_LAUNCH_MEASURE, paddr);
-
-	if (ret != 0 || lm->measure_len != ulm->measure_len)
-		return (EIO);
-
-	bcopy(&lm->psp_measure, &ulm->psp_measure, ulm->measure_len);
-
-	return (0);
-}
-
-int
-psp_launch_finish(struct psp_launch_finish *ulf)
-{
-	struct ccp_softc	*sc = ccp_softc;
-	struct psp_launch_finish *lf;
-	int			 ret;
-
-	lf = (struct psp_launch_finish *)sc->sc_cmd_kva;
-	bzero(lf, sizeof(*lf));
-
-	lf->handle = ulf->handle;
-
-	ret = ccp_docmd(sc, PSP_CMD_LAUNCH_FINISH,
-	    sc->sc_cmd_map->dm_segs[0].ds_addr);
-
-	if (ret != 0)
-		return (EIO);
-
-	return (0);
-}
-
-int
-psp_attestation(struct psp_attestation *uat)
-{
-	struct ccp_softc	*sc = ccp_softc;
-	struct psp_attestation	*at;
-	int			 ret;
-	uint64_t		 paddr;
-
-	if (uat->attest_len != sizeof(uat->psp_report))
-		return (EINVAL);
-
-	at = (struct psp_attestation *)sc->sc_cmd_kva;
-	bzero(at, sizeof(*at));
-
-	at->handle = uat->handle;
-	paddr = sc->sc_cmd_map->dm_segs[0].ds_addr;
-	at->attest_paddr =
-	    paddr + offsetof(struct psp_attestation, psp_report);
-	bcopy(uat->attest_nonce, at->attest_nonce, sizeof(at->attest_nonce));
-	at->attest_len = sizeof(at->psp_report);
-
-	ret = ccp_docmd(sc, PSP_CMD_ATTESTATION, paddr);
-
-	if (ret != 0 || at->attest_len != uat->attest_len)
-		return (EIO);
-
-	bcopy(&at->psp_report, &uat->psp_report, uat->attest_len);
-
-	return (0);
-}
-
-int
-psp_activate(struct psp_activate *uact)
-{
-	struct ccp_softc	*sc = ccp_softc;
-	struct psp_activate	*act;
-	int			 ret;
-
-	act = (struct psp_activate *)sc->sc_cmd_kva;
-	bzero(act, sizeof(*act));
-
-	act->handle = uact->handle;
-	act->asid = uact->asid;
-
-	ret = ccp_docmd(sc, PSP_CMD_ACTIVATE,
-	    sc->sc_cmd_map->dm_segs[0].ds_addr);
-
-	if (ret != 0)
-		return (EIO);
-
-	return (0);
-}
-
-int
-psp_deactivate(struct psp_deactivate *udeact)
-{
-	struct ccp_softc	*sc = ccp_softc;
-	struct psp_deactivate	*deact;
-	int			 ret;
-
-	deact = (struct psp_deactivate *)sc->sc_cmd_kva;
-	bzero(deact, sizeof(*deact));
-
-	deact->handle = udeact->handle;
-
-	ret = ccp_docmd(sc, PSP_CMD_DEACTIVATE,
-	    sc->sc_cmd_map->dm_segs[0].ds_addr);
-
-	if (ret != 0)
-		return (EIO);
-
-	return (0);
-}
-
-int
-psp_guest_shutdown(struct psp_guest_shutdown *ugshutdown)
-{
-	struct psp_deactivate	deact;
-	struct psp_decommission	decom;
-	int			ret;
-
-	bzero(&deact, sizeof(deact));
-	deact.handle = ugshutdown->handle;
-	if ((ret = psp_deactivate(&deact)) != 0)
-		return (ret);
-
-	if ((ret = psp_df_flush()) != 0)
-		return (ret);
-
-	bzero(&decom, sizeof(decom));
-	decom.handle = ugshutdown->handle;
-	if ((ret = psp_decommission(&decom)) != 0)
-		return (ret);
-
-	return (0);
-}
-
-int
-psp_snp_get_pstatus(struct psp_snp_platform_status *ustatus)
-{
-	struct ccp_softc	*sc = ccp_softc;
-	struct psp_snp_platform_status *status;
-	int			 ret;
-
-	status = (struct psp_snp_platform_status *)sc->sc_cmd_kva;
-	bzero(status, sizeof(*status));
-
-	ret = ccp_docmd(sc, PSP_CMD_SNP_PLATFORMSTATUS,
-	    sc->sc_cmd_map->dm_segs[0].ds_addr);
-
-	if (ret != 0)
-		return (EIO);
-
-	bcopy(status, ustatus, sizeof(*ustatus));
-
-	return (0);
-}
-
-int
-pspopen(dev_t dev, int flag, int mode, struct proc *p)
-{
-	if (ccp_softc == NULL)
-		return (ENODEV);
-
-	return (0);
-}
-
-int
-pspclose(dev_t dev, int flag, int mode, struct proc *p)
-{
-	return (0);
-}
-
-int
-pspioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
-{
-	int	ret;
-
-	rw_enter_write(&ccp_softc->sc_lock);
-
-	switch (cmd) {
-	case PSP_IOC_GET_PSTATUS:
-		ret = psp_get_pstatus((struct psp_platform_status *)data);
-		break;
-	case PSP_IOC_DF_FLUSH:
-		ret = psp_df_flush();
-		break;
-	case PSP_IOC_DECOMMISSION:
-		ret = psp_decommission((struct psp_decommission *)data);
-		break;
-	case PSP_IOC_GET_GSTATUS:
-		ret = psp_get_gstatus((struct psp_guest_status *)data);
-		break;
-	case PSP_IOC_LAUNCH_START:
-		ret = psp_launch_start((struct psp_launch_start *)data);
-		break;
-	case PSP_IOC_LAUNCH_UPDATE_DATA:
-		ret = psp_launch_update_data(
-		    (struct psp_launch_update_data *)data, p);
-		break;
-	case PSP_IOC_LAUNCH_MEASURE:
-		ret = psp_launch_measure((struct psp_launch_measure *)data);
-		break;
-	case PSP_IOC_LAUNCH_FINISH:
-		ret = psp_launch_finish((struct psp_launch_finish *)data);
-		break;
-	case PSP_IOC_ATTESTATION:
-		ret = psp_attestation((struct psp_attestation *)data);
-		break;
-	case PSP_IOC_ACTIVATE:
-		ret = psp_activate((struct psp_activate *)data);
-		break;
-	case PSP_IOC_DEACTIVATE:
-		ret = psp_deactivate((struct psp_deactivate *)data);
-		break;
-	case PSP_IOC_GUEST_SHUTDOWN:
-		ret = psp_guest_shutdown((struct psp_guest_shutdown *)data);
-		break;
-	case PSP_IOC_SNP_GET_PSTATUS:
-		ret =
-		    psp_snp_get_pstatus((struct psp_snp_platform_status *)data);
-		break;
-	default:
-		ret = ENOTTY;
-		break;
-	}
-
-	rw_exit_write(&ccp_softc->sc_lock);
-
-	return (ret);
-}
-
-int
-pledge_ioctl_psp(struct proc *p, long com)
-{
-	switch (com) {
-	case PSP_IOC_GET_PSTATUS:
-	case PSP_IOC_DF_FLUSH:
-	case PSP_IOC_GET_GSTATUS:
-	case PSP_IOC_LAUNCH_START:
-	case PSP_IOC_LAUNCH_UPDATE_DATA:
-	case PSP_IOC_LAUNCH_MEASURE:
-	case PSP_IOC_LAUNCH_FINISH:
-	case PSP_IOC_ACTIVATE:
-	case PSP_IOC_GUEST_SHUTDOWN:
-		return (0);
-	default:
-		return (pledge_fail(p, EPERM, PLEDGE_VMM));
-	}
-}
-#endif	/* __amd64__ */
diff --git a/sys/dev/ic/ccpvar.h b/sys/dev/ic/ccpvar.h
index 7add1e0a46e..59fb2e9e613 100644
--- a/sys/dev/ic/ccpvar.h
+++ b/sys/dev/ic/ccpvar.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ccpvar.h,v 1.4 2024/09/01 19:25:06 bluhm Exp $ */
+/*	$OpenBSD: ccpvar.h,v 1.5 2024/09/03 00:23:05 jsg Exp $ */
 
 /*
  * Copyright (c) 2018 David Gwynne <dlg@openbsd.org>
@@ -18,6 +18,7 @@
  */
 
 #include <sys/timeout.h>
+#include <sys/rwlock.h>
 
 struct ccp_softc {
 	struct device		sc_dev;
@@ -28,7 +29,6 @@ struct ccp_softc {
 
 	int			sc_psp_attached;
 
-#ifdef __amd64__
 	bus_dma_tag_t		sc_dmat;
 	uint32_t		sc_capabilities;
 	int			(*sc_sev_intr)(struct ccp_softc *, uint32_t);
@@ -45,251 +45,6 @@ struct ccp_softc {
 	caddr_t			sc_tmr_kva;
 
 	struct rwlock		sc_lock;
-#endif
 };
 
-#ifdef __amd64__
-
-#include <sys/ioctl.h>
-#include <sys/rwlock.h>
-
-/* AMD 17h */
-#define PSP_REG_INTEN		0x10690
-#define PSP_REG_INTSTS		0x10694
-#define PSP_REG_CMDRESP		0x10980
-#define PSP_REG_ADDRLO		0x109e0
-#define PSP_REG_ADDRHI		0x109e4
-#define PSP_REG_CAPABILITIES	0x109fc
-
-#define PSP_PSTATE_UNINIT	0x0
-#define PSP_PSTATE_INIT		0x1
-#define PSP_PSTATE_WORKING	0x2
-
-#define PSP_GSTATE_UNINIT	0x0
-#define PSP_GSTATE_LUPDATE	0x1
-#define PSP_GSTATE_LSECRET	0x2
-#define PSP_GSTATE_RUNNING	0x3
-#define PSP_GSTATE_SUPDATE	0x4
-#define PSP_GSTATE_RUPDATE	0x5
-#define PSP_GSTATE_SENT		0x6
-
-#define PSP_CAP_SEV					(1 << 0)
-#define PSP_CAP_TEE					(1 << 1)
-#define PSP_CAP_DBC_THRU_EXT				(1 << 2)
-#define PSP_CAP_SECURITY_REPORTING			(1 << 7)
-#define PSP_CAP_SECURITY_FUSED_PART			(1 << 8)
-#define PSP_CAP_SECURITY_DEBUG_LOCK_ON			(1 << 10)
-#define PSP_CAP_SECURITY_TSME_STATUS			(1 << 13)
-#define PSP_CAP_SECURITY_ANTI_ROLLBACK_STATUS		(1 << 15)
-#define PSP_CAP_SECURITY_RPMC_PRODUCTION_ENABLED	(1 << 16)
-#define PSP_CAP_SECURITY_RPMC_SPIROM_AVAILABLE		(1 << 17)
-#define PSP_CAP_SECURITY_HSP_TPM_AVAILABLE		(1 << 18)
-#define PSP_CAP_SECURITY_ROM_ARMOR_ENFORCED		(1 << 19)
-
-#define PSP_CAP_BITS	"\20\001SEV\002TEE\003DBC_THRU_EXT\010REPORTING\011FUSED_PART\013DEBUG_LOCK_ON\016TSME_STATUS\020ANTI_ROLLBACK_STATUS\021RPMC_PRODUCTION_ENABLED\022RPMC_SPIROM_AVAILABLE\023HSP_TPM_AVAILABLE\024ROM_ARMOR_ENFORCED"
-
-#define PSP_CMDRESP_IOC		(1 << 0)
-#define PSP_CMDRESP_COMPLETE	(1 << 1)
-#define PSP_CMDRESP_RESPONSE	(1 << 31)
-
-#define PSP_STATUS_MASK				0xffff
-#define PSP_STATUS_SUCCESS			0x0000
-#define PSP_STATUS_INVALID_PLATFORM_STATE	0x0001
-
-#define PSP_TMR_SIZE		(1024*1024)	/* 1 Mb */
-
-#define PSP_SUCCESS		0x0000
-#define PSP_INVALID_ADDRESS	0x0009
-
-/* Selection of PSP commands of the SEV API Version 0.24 */
-
-#define PSP_CMD_INIT			0x1
-#define PSP_CMD_PLATFORMSTATUS		0x4
-#define PSP_CMD_DF_FLUSH		0xa
-#define PSP_CMD_DECOMMISSION		0x20
-#define PSP_CMD_ACTIVATE		0x21
-#define PSP_CMD_DEACTIVATE		0x22
-#define PSP_CMD_GUESTSTATUS		0x23
-#define PSP_CMD_LAUNCH_START		0x30
-#define PSP_CMD_LAUNCH_UPDATE_DATA	0x31
-#define PSP_CMD_LAUNCH_MEASURE		0x33
-#define PSP_CMD_LAUNCH_FINISH		0x35
-#define PSP_CMD_ATTESTATION		0x36
-
-struct psp_platform_status {
-	/* Output parameters from PSP_CMD_PLATFORMSTATUS */
-	uint8_t			api_major;
-	uint8_t			api_minor;
-	uint8_t			state;
-	uint8_t			owner;
-	uint32_t		cfges_build;
-	uint32_t		guest_count;
-} __packed;
-
-struct psp_guest_status {
-	/* Input parameter for PSP_CMD_GUESTSTATUS */
-	uint32_t		handle;
-
-	/* Output parameters from PSP_CMD_GUESTSTATUS */
-	uint32_t		policy;
-	uint32_t		asid;
-	uint8_t			state;
-} __packed;
-
-struct psp_launch_start {
-	/* Input/Output parameter for PSP_CMD_LAUNCH_START */
-	uint32_t		handle;
-
-	/* Input parameters for PSP_CMD_LAUNCH_START */
-	uint32_t		policy;
-
-	/* The following input parameters are not used yet */
-	uint64_t		dh_cert_paddr;
-	uint32_t		dh_cert_len;
-	uint32_t		reserved;
-	uint64_t		session_paddr;
-	uint32_t		session_len;
-} __packed;
-
-struct psp_launch_update_data {
-	/* Input parameters for PSP_CMD_LAUNCH_UPDATE_DATA */
-	uint32_t		handle;
-	uint32_t		reserved;
-	uint64_t		paddr;
-	uint32_t		length;
-} __packed;
-
-struct psp_measure {
-	/* Output buffer for PSP_CMD_LAUNCH_MEASURE */
-	uint8_t			measure[32];
-	uint8_t			measure_nonce[16];
-} __packed;
-
-struct psp_launch_measure {
-	/* Input parameters for PSP_CMD_LAUNCH_MEASURE */
-	uint32_t		handle;
-	uint32_t		reserved;
-	uint64_t		measure_paddr;
-
-	/* Input/output parameter for PSP_CMD_LAUNCH_MEASURE */
-	uint32_t		measure_len;
-	uint32_t		padding;
-
-	/* Output buffer from PSP_CMD_LAUNCH_MEASURE */
-	struct psp_measure	psp_measure;	/* 64bit aligned */
-#define measure		psp_measure.measure
-#define measure_nonce	psp_measure.measure_nonce
-} __packed;
-
-struct psp_launch_finish {
-	/* Input parameter for PSP_CMD_LAUNCH_FINISH */
-	uint32_t		handle;
-} __packed;
-
-struct psp_report {
-	/* Output buffer for PSP_CMD_ATTESTATION */
-	uint8_t			report_nonce[16];
-	uint8_t			report_launch_digest[32];
-	uint32_t		report_policy;
-	uint32_t		report_sig_usage;
-	uint32_t		report_sig_algo;
-	uint32_t		reserved2;
-	uint8_t			report_sig1[144];
-} __packed;
-
-struct psp_attestation {
-	/* Input parameters for PSP_CMD_ATTESTATION */
-	uint32_t		handle;
-	uint32_t		reserved;
-	uint64_t		attest_paddr;
-	uint8_t			attest_nonce[16];
-
-	/* Input/output parameter from PSP_CMD_ATTESTATION */
-	uint32_t		attest_len;
-	uint32_t		padding;
-
-	/* Output parameter from PSP_CMD_ATTESTATION */
-	struct psp_report	psp_report;	/* 64bit aligned */
-#define report_nonce		psp_report.report_nonce
-#define report_launch_digest	psp_report.report_launch_digest
-#define report_policy		psp_report.report_policy
-#define report_sig_usage	psp_report.report_sig_usage;
-#define report_report_sig_alg	psp_report.report_sig_algo;
-#define report_report_sig1	psp_report.report_sig1;
-} __packed;
-
-struct psp_activate {
-	/* Input parameters for PSP_CMD_ACTIVATE */
-	uint32_t		handle;
-	uint32_t		asid;
-} __packed;
-
-struct psp_deactivate {
-	/* Input parameter for PSP_CMD_DEACTIVATE */
-	uint32_t		handle;
-} __packed;
-
-struct psp_decommission {
-	/* Input parameter for PSP_CMD_DECOMMISSION */
-	uint32_t		handle;
-} __packed;
-
-struct psp_init {
-	/* Output parameters from PSP_CMD_INIT */
-	uint32_t		enable_es;
-	uint32_t		reserved;
-	uint64_t		tmr_paddr;
-	uint32_t		tmr_length;
-} __packed;
-
-
-struct psp_guest_shutdown {
-	/* Input parameter for PSP_CMD_GUEST_SHUTDOWN */
-	uint32_t		handle;
-} __packed;
-
-/* Selection of PSP commands of the SEV-SNP ABI Version 1.55 */
-
-#define PSP_CMD_SNP_PLATFORMSTATUS	0x81
-
-struct psp_snp_platform_status {
-	uint8_t			api_major;
-	uint8_t			api_minor;
-	uint8_t			state;
-	uint8_t			is_rmp_init;
-	uint32_t		build;
-	uint32_t		features;
-	uint32_t		guest_count;
-	uint64_t		current_tcb;
-	uint64_t		reported_tcb;
-} __packed;
-
-#define PSP_IOC_GET_PSTATUS	_IOR('P', 0, struct psp_platform_status)
-#define PSP_IOC_DF_FLUSH	_IO('P', 1)
-#define PSP_IOC_DECOMMISSION	_IOW('P', 2, struct psp_decommission)
-#define PSP_IOC_GET_GSTATUS	_IOWR('P', 3, struct psp_guest_status)
-#define PSP_IOC_LAUNCH_START	_IOWR('P', 4, struct psp_launch_start)
-#define PSP_IOC_LAUNCH_UPDATE_DATA \
-				_IOW('P', 5, struct psp_launch_update_data)
-#define PSP_IOC_LAUNCH_MEASURE	_IOWR('P', 6, struct psp_launch_measure)
-#define PSP_IOC_LAUNCH_FINISH	_IOW('P', 7, struct psp_launch_finish)
-#define PSP_IOC_ATTESTATION	_IOWR('P', 8, struct psp_attestation)
-#define PSP_IOC_ACTIVATE	_IOW('P', 9, struct psp_activate)
-#define PSP_IOC_DEACTIVATE	_IOW('P', 10, struct psp_deactivate)
-#define PSP_IOC_SNP_GET_PSTATUS	_IOR('P', 11, struct psp_snp_platform_status)
-#define PSP_IOC_GUEST_SHUTDOWN	_IOW('P', 255, struct psp_guest_shutdown)
-#endif	/* __amd64__ */
-
-#ifdef _KERNEL
-
 void	ccp_attach(struct ccp_softc *);
-
-#ifdef __amd64__
-int	psp_attach(struct ccp_softc *);
-
-int	pspclose(dev_t, int, int, struct proc *);
-int	pspopen(dev_t, int, int, struct proc *);
-int	pspioctl(dev_t, u_long, caddr_t, int, struct proc *);
-#endif
-
-#endif	/* _KERNEL */
diff --git a/sys/dev/ic/psp.c b/sys/dev/ic/psp.c
new file mode 100644
index 00000000000..d6a80998e09
--- /dev/null
+++ b/sys/dev/ic/psp.c
@@ -0,0 +1,659 @@
+/*	$OpenBSD: psp.c,v 1.1 2024/09/03 00:23:05 jsg Exp $ */
+
+/*
+ * Copyright (c) 2023, 2024 Hans-Joerg Hoexer <hshoexer@genua.de>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+#include <sys/timeout.h>
+#include <sys/pledge.h>
+
+#include <machine/bus.h>
+
+#include <sys/proc.h>
+#include <uvm/uvm.h>
+#include <crypto/xform.h>
+
+#include <dev/ic/ccpvar.h>
+#include <dev/ic/pspvar.h>
+
+struct ccp_softc *ccp_softc;
+
+int	psp_get_pstatus(struct psp_platform_status *);
+int	psp_init(struct psp_init *);
+
+int
+psp_sev_intr(struct ccp_softc *sc, uint32_t status)
+{
+	if (!(status & PSP_CMDRESP_COMPLETE))
+		return (0);
+
+	wakeup(sc);
+
+	return (1);
+}
+
+int
+psp_attach(struct ccp_softc *sc)
+{
+	struct psp_platform_status	pst;
+	struct psp_init			init;
+	size_t				size;
+	int				nsegs;
+
+	if (!(sc->sc_capabilities & PSP_CAP_SEV))
+		return (0);
+
+	rw_init(&sc->sc_lock, "ccp_lock");
+
+	/* create and map SEV command buffer */
+	sc->sc_cmd_size = size = PAGE_SIZE;
+	if (bus_dmamap_create(sc->sc_dmat, size, 1, size, 0,
+	    BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW | BUS_DMA_64BIT,
+	    &sc->sc_cmd_map) != 0)
+		return (0);
+
+	if (bus_dmamem_alloc(sc->sc_dmat, size, 0, 0, &sc->sc_cmd_seg, 1,
+	    &nsegs, BUS_DMA_WAITOK | BUS_DMA_ZERO) != 0)
+		goto fail_0;
+
+	if (bus_dmamem_map(sc->sc_dmat, &sc->sc_cmd_seg, nsegs, size,
+	    &sc->sc_cmd_kva, BUS_DMA_WAITOK) != 0)
+		goto fail_1;
+
+	if (bus_dmamap_load(sc->sc_dmat, sc->sc_cmd_map, sc->sc_cmd_kva,
+	    size, NULL, BUS_DMA_WAITOK) != 0)
+		goto fail_2;
+
+	sc->sc_sev_intr = psp_sev_intr;
+	ccp_softc = sc;
+
+	if (psp_get_pstatus(&pst) || pst.state != 0)
+		goto fail_3;
+
+	/*
+         * create and map Trusted Memory Region (TMR); size 1 Mbyte,
+         * needs to be aligned to 1 Mbyte.
+	 */
+	sc->sc_tmr_size = size = PSP_TMR_SIZE;
+	if (bus_dmamap_create(sc->sc_dmat, size, 1, size, 0,
+	    BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW | BUS_DMA_64BIT,
+	    &sc->sc_tmr_map) != 0)
+		goto fail_3;
+
+	if (bus_dmamem_alloc(sc->sc_dmat, size, size, 0, &sc->sc_tmr_seg, 1,
+	    &nsegs, BUS_DMA_WAITOK | BUS_DMA_ZERO) != 0)
+		goto fail_4;
+
+	if (bus_dmamem_map(sc->sc_dmat, &sc->sc_tmr_seg, nsegs, size,
+	    &sc->sc_tmr_kva, BUS_DMA_WAITOK) != 0)
+		goto fail_5;
+
+	if (bus_dmamap_load(sc->sc_dmat, sc->sc_tmr_map, sc->sc_tmr_kva,
+	    size, NULL, BUS_DMA_WAITOK) != 0)
+		goto fail_6;
+
+	memset(&init, 0, sizeof(init));
+	init.enable_es = 1;
+	init.tmr_length = PSP_TMR_SIZE;
+	init.tmr_paddr = sc->sc_tmr_map->dm_segs[0].ds_addr;
+	if (psp_init(&init))
+		goto fail_7;
+
+	printf(", SEV");
+
+	psp_get_pstatus(&pst);
+	if ((pst.state == 1) && (pst.cfges_build & 0x1))
+		printf(", SEV-ES");
+
+	sc->sc_psp_attached = 1;
+
+	return (1);
+
+fail_7:
+	bus_dmamap_unload(sc->sc_dmat, sc->sc_tmr_map);
+fail_6:
+	bus_dmamem_unmap(sc->sc_dmat, sc->sc_tmr_kva, size);
+fail_5:
+	bus_dmamem_free(sc->sc_dmat, &sc->sc_tmr_seg, 1);
+fail_4:
+	bus_dmamap_destroy(sc->sc_dmat, sc->sc_tmr_map);
+fail_3:
+	bus_dmamap_unload(sc->sc_dmat, sc->sc_cmd_map);
+fail_2:
+	bus_dmamem_unmap(sc->sc_dmat, sc->sc_cmd_kva, size);
+fail_1:
+	bus_dmamem_free(sc->sc_dmat, &sc->sc_cmd_seg, 1);
+fail_0:
+	bus_dmamap_destroy(sc->sc_dmat, sc->sc_cmd_map);
+
+	ccp_softc = NULL;
+	sc->sc_psp_attached = -1;
+
+	return (0);
+}
+
+static int
+ccp_wait(struct ccp_softc *sc, uint32_t *status, int poll)
+{
+	uint32_t	cmdword;
+	int		count;
+
+	if (poll) {
+		count = 0;
+		while (count++ < 10) {
+			cmdword = bus_space_read_4(sc->sc_iot, sc->sc_ioh,
+			    PSP_REG_CMDRESP);
+			if (cmdword & PSP_CMDRESP_RESPONSE)
+				goto done;
+			delay(5000);
+		}
+
+		/* timeout */
+		return (1);
+	}
+
+	if (tsleep_nsec(sc, PWAIT, "psp", SEC_TO_NSEC(1)) == EWOULDBLOCK)
+		return (1);
+
+done:
+	if (status) {
+		*status = bus_space_read_4(sc->sc_iot, sc->sc_ioh,
+		    PSP_REG_CMDRESP);
+	}
+
+	return (0);
+}
+
+static int
+ccp_docmd(struct ccp_softc *sc, int cmd, uint64_t paddr)
+{
+	uint32_t	plo, phi, cmdword, status;
+
+	plo = ((paddr >> 0) & 0xffffffff);
+	phi = ((paddr >> 32) & 0xffffffff);
+	cmdword = (cmd & 0x3ff) << 16;
+	if (!cold)
+		cmdword |= PSP_CMDRESP_IOC;
+
+	bus_space_write_4(sc->sc_iot, sc->sc_ioh, PSP_REG_ADDRLO, plo);
+	bus_space_write_4(sc->sc_iot, sc->sc_ioh, PSP_REG_ADDRHI, phi);
+	bus_space_write_4(sc->sc_iot, sc->sc_ioh, PSP_REG_CMDRESP, cmdword);
+
+	if (ccp_wait(sc, &status, cold))
+		return (1);
+
+	/* Did PSP sent a response code? */
+	if (status & PSP_CMDRESP_RESPONSE) {
+		if ((status & PSP_STATUS_MASK) != PSP_STATUS_SUCCESS)
+			return (1);
+	}
+
+	return (0);
+}
+
+int
+psp_init(struct psp_init *uinit)
+{
+	struct ccp_softc	*sc = ccp_softc;
+	struct psp_init		*init;
+	int			 ret;
+
+	init = (struct psp_init *)sc->sc_cmd_kva;
+	bzero(init, sizeof(*init));
+
+	init->enable_es = uinit->enable_es;
+	init->tmr_paddr = uinit->tmr_paddr;
+	init->tmr_length = uinit->tmr_length;
+
+	ret = ccp_docmd(sc, PSP_CMD_INIT, sc->sc_cmd_map->dm_segs[0].ds_addr);
+	if (ret != 0)
+		return (EIO);
+
+	wbinvd_on_all_cpus();
+
+	return (0);
+}
+
+int
+psp_get_pstatus(struct psp_platform_status *ustatus)
+{
+	struct ccp_softc	*sc = ccp_softc;
+	struct psp_platform_status *status;
+	int			 ret;
+
+	status = (struct psp_platform_status *)sc->sc_cmd_kva;
+	bzero(status, sizeof(*status));
+
+	ret = ccp_docmd(sc, PSP_CMD_PLATFORMSTATUS,
+	    sc->sc_cmd_map->dm_segs[0].ds_addr);
+
+	if (ret != 0)
+		return (EIO);
+
+	bcopy(status, ustatus, sizeof(*ustatus));
+
+	return (0);
+}
+
+int
+psp_df_flush(void)
+{
+	struct ccp_softc	*sc = ccp_softc;
+	int			 ret;
+
+	wbinvd_on_all_cpus();
+
+	ret = ccp_docmd(sc, PSP_CMD_DF_FLUSH, 0x0);
+
+	if (ret != 0)
+		return (EIO);
+
+	return (0);
+}
+
+int
+psp_decommission(struct psp_decommission *udecom)
+{
+	struct ccp_softc	*sc = ccp_softc;
+	struct psp_decommission	*decom;
+	int			 ret;
+
+	decom = (struct psp_decommission *)sc->sc_cmd_kva;
+	bzero(decom, sizeof(*decom));
+
+	decom->handle = udecom->handle;
+
+	ret = ccp_docmd(sc, PSP_CMD_DECOMMISSION,
+	    sc->sc_cmd_map->dm_segs[0].ds_addr);
+
+	if (ret != 0)
+		return (EIO);
+
+	return (0);
+}
+
+int
+psp_get_gstatus(struct psp_guest_status *ustatus)
+{
+	struct ccp_softc	*sc = ccp_softc;
+	struct psp_guest_status	*status;
+	int			 ret;
+
+	status = (struct psp_guest_status *)sc->sc_cmd_kva;
+	bzero(status, sizeof(*status));
+
+	status->handle = ustatus->handle;
+
+	ret = ccp_docmd(sc, PSP_CMD_GUESTSTATUS,
+	    sc->sc_cmd_map->dm_segs[0].ds_addr);
+
+	if (ret != 0)
+		return (EIO);
+
+	ustatus->policy = status->policy;
+	ustatus->asid = status->asid;
+	ustatus->state = status->state;
+
+	return (0);
+}
+
+int
+psp_launch_start(struct psp_launch_start *ustart)
+{
+	struct ccp_softc	*sc = ccp_softc;
+	struct psp_launch_start	*start;
+	int			 ret;
+
+	start = (struct psp_launch_start *)sc->sc_cmd_kva;
+	bzero(start, sizeof(*start));
+
+	start->handle = ustart->handle;
+	start->policy = ustart->policy;
+
+	ret = ccp_docmd(sc, PSP_CMD_LAUNCH_START,
+	    sc->sc_cmd_map->dm_segs[0].ds_addr);
+
+	if (ret != 0)
+		return (EIO);
+
+	/* If requested, return new handle. */
+	if (ustart->handle == 0)
+		ustart->handle = start->handle;
+
+	return (0);
+}
+
+int
+psp_launch_update_data(struct psp_launch_update_data *ulud, struct proc *p)
+{
+	struct ccp_softc		*sc = ccp_softc;
+	struct psp_launch_update_data	*ludata;
+	pmap_t				 pmap;
+	vaddr_t				 v, next, end;
+	size_t				 size, len, off;
+	int				 ret;
+
+	/* Ensure AES_XTS_BLOCKSIZE alignment and multiplicity. */
+	if ((ulud->paddr & (AES_XTS_BLOCKSIZE - 1)) != 0 ||
+	    (ulud->length % AES_XTS_BLOCKSIZE) != 0)
+		return (EINVAL);
+
+	ludata = (struct psp_launch_update_data *)sc->sc_cmd_kva;
+	bzero(ludata, sizeof(*ludata));
+
+	ludata->handle = ulud->handle;
+
+	/* Drain caches before we encrypt memory. */
+	wbinvd_on_all_cpus();
+
+	/*
+	 * Launch update one physical page at a time.  We could
+	 * optimise this for contiguous pages of physical memory.
+	 *
+	 * vmd(8) provides the guest physical address, thus convert
+	 * to system physical address.
+	 */
+	pmap = vm_map_pmap(&p->p_vmspace->vm_map);
+	size = ulud->length;
+	end = ulud->paddr + ulud->length;
+	for (v = ulud->paddr; v < end; v = next) {
+		off = v & PAGE_MASK;
+
+		len = MIN(PAGE_SIZE - off, size);
+
+		/* Wire mapping. */
+		if (uvm_map_pageable(&p->p_vmspace->vm_map, v, v+len, FALSE, 0))
+			return (EINVAL);
+		if (!pmap_extract(pmap, v, (paddr_t *)&ludata->paddr))
+			return (EINVAL);
+		ludata->length = len;
+
+		ret = ccp_docmd(sc, PSP_CMD_LAUNCH_UPDATE_DATA,
+		    sc->sc_cmd_map->dm_segs[0].ds_addr);
+
+		if (ret != 0)
+			return (EIO);
+
+		size -= len;
+		next = v + len;
+	}
+
+	return (0);
+}
+
+int
+psp_launch_measure(struct psp_launch_measure *ulm)
+{
+	struct psp_launch_measure *lm;
+	struct ccp_softc	*sc = ccp_softc;
+	int			 ret;
+	uint64_t		 paddr;
+
+	if (ulm->measure_len != sizeof(ulm->psp_measure))
+		return (EINVAL);
+
+	lm = (struct psp_launch_measure *)sc->sc_cmd_kva;
+	bzero(lm, sizeof(*lm));
+
+	lm->handle = ulm->handle;
+	paddr = sc->sc_cmd_map->dm_segs[0].ds_addr;
+	lm->measure_paddr =
+	    paddr + offsetof(struct psp_launch_measure, psp_measure);
+	lm->measure_len = sizeof(lm->psp_measure);
+
+	ret = ccp_docmd(sc, PSP_CMD_LAUNCH_MEASURE, paddr);
+
+	if (ret != 0 || lm->measure_len != ulm->measure_len)
+		return (EIO);
+
+	bcopy(&lm->psp_measure, &ulm->psp_measure, ulm->measure_len);
+
+	return (0);
+}
+
+int
+psp_launch_finish(struct psp_launch_finish *ulf)
+{
+	struct ccp_softc	*sc = ccp_softc;
+	struct psp_launch_finish *lf;
+	int			 ret;
+
+	lf = (struct psp_launch_finish *)sc->sc_cmd_kva;
+	bzero(lf, sizeof(*lf));
+
+	lf->handle = ulf->handle;
+
+	ret = ccp_docmd(sc, PSP_CMD_LAUNCH_FINISH,
+	    sc->sc_cmd_map->dm_segs[0].ds_addr);
+
+	if (ret != 0)
+		return (EIO);
+
+	return (0);
+}
+
+int
+psp_attestation(struct psp_attestation *uat)
+{
+	struct ccp_softc	*sc = ccp_softc;
+	struct psp_attestation	*at;
+	int			 ret;
+	uint64_t		 paddr;
+
+	if (uat->attest_len != sizeof(uat->psp_report))
+		return (EINVAL);
+
+	at = (struct psp_attestation *)sc->sc_cmd_kva;
+	bzero(at, sizeof(*at));
+
+	at->handle = uat->handle;
+	paddr = sc->sc_cmd_map->dm_segs[0].ds_addr;
+	at->attest_paddr =
+	    paddr + offsetof(struct psp_attestation, psp_report);
+	bcopy(uat->attest_nonce, at->attest_nonce, sizeof(at->attest_nonce));
+	at->attest_len = sizeof(at->psp_report);
+
+	ret = ccp_docmd(sc, PSP_CMD_ATTESTATION, paddr);
+
+	if (ret != 0 || at->attest_len != uat->attest_len)
+		return (EIO);
+
+	bcopy(&at->psp_report, &uat->psp_report, uat->attest_len);
+
+	return (0);
+}
+
+int
+psp_activate(struct psp_activate *uact)
+{
+	struct ccp_softc	*sc = ccp_softc;
+	struct psp_activate	*act;
+	int			 ret;
+
+	act = (struct psp_activate *)sc->sc_cmd_kva;
+	bzero(act, sizeof(*act));
+
+	act->handle = uact->handle;
+	act->asid = uact->asid;
+
+	ret = ccp_docmd(sc, PSP_CMD_ACTIVATE,
+	    sc->sc_cmd_map->dm_segs[0].ds_addr);
+
+	if (ret != 0)
+		return (EIO);
+
+	return (0);
+}
+
+int
+psp_deactivate(struct psp_deactivate *udeact)
+{
+	struct ccp_softc	*sc = ccp_softc;
+	struct psp_deactivate	*deact;
+	int			 ret;
+
+	deact = (struct psp_deactivate *)sc->sc_cmd_kva;
+	bzero(deact, sizeof(*deact));
+
+	deact->handle = udeact->handle;
+
+	ret = ccp_docmd(sc, PSP_CMD_DEACTIVATE,
+	    sc->sc_cmd_map->dm_segs[0].ds_addr);
+
+	if (ret != 0)
+		return (EIO);
+
+	return (0);
+}
+
+int
+psp_guest_shutdown(struct psp_guest_shutdown *ugshutdown)
+{
+	struct psp_deactivate	deact;
+	struct psp_decommission	decom;
+	int			ret;
+
+	bzero(&deact, sizeof(deact));
+	deact.handle = ugshutdown->handle;
+	if ((ret = psp_deactivate(&deact)) != 0)
+		return (ret);
+
+	if ((ret = psp_df_flush()) != 0)
+		return (ret);
+
+	bzero(&decom, sizeof(decom));
+	decom.handle = ugshutdown->handle;
+	if ((ret = psp_decommission(&decom)) != 0)
+		return (ret);
+
+	return (0);
+}
+
+int
+psp_snp_get_pstatus(struct psp_snp_platform_status *ustatus)
+{
+	struct ccp_softc	*sc = ccp_softc;
+	struct psp_snp_platform_status *status;
+	int			 ret;
+
+	status = (struct psp_snp_platform_status *)sc->sc_cmd_kva;
+	bzero(status, sizeof(*status));
+
+	ret = ccp_docmd(sc, PSP_CMD_SNP_PLATFORMSTATUS,
+	    sc->sc_cmd_map->dm_segs[0].ds_addr);
+
+	if (ret != 0)
+		return (EIO);
+
+	bcopy(status, ustatus, sizeof(*ustatus));
+
+	return (0);
+}
+
+int
+pspopen(dev_t dev, int flag, int mode, struct proc *p)
+{
+	if (ccp_softc == NULL)
+		return (ENODEV);
+
+	return (0);
+}
+
+int
+pspclose(dev_t dev, int flag, int mode, struct proc *p)
+{
+	return (0);
+}
+
+int
+pspioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
+{
+	int	ret;
+
+	rw_enter_write(&ccp_softc->sc_lock);
+
+	switch (cmd) {
+	case PSP_IOC_GET_PSTATUS:
+		ret = psp_get_pstatus((struct psp_platform_status *)data);
+		break;
+	case PSP_IOC_DF_FLUSH:
+		ret = psp_df_flush();
+		break;
+	case PSP_IOC_DECOMMISSION:
+		ret = psp_decommission((struct psp_decommission *)data);
+		break;
+	case PSP_IOC_GET_GSTATUS:
+		ret = psp_get_gstatus((struct psp_guest_status *)data);
+		break;
+	case PSP_IOC_LAUNCH_START:
+		ret = psp_launch_start((struct psp_launch_start *)data);
+		break;
+	case PSP_IOC_LAUNCH_UPDATE_DATA:
+		ret = psp_launch_update_data(
+		    (struct psp_launch_update_data *)data, p);
+		break;
+	case PSP_IOC_LAUNCH_MEASURE:
+		ret = psp_launch_measure((struct psp_launch_measure *)data);
+		break;
+	case PSP_IOC_LAUNCH_FINISH:
+		ret = psp_launch_finish((struct psp_launch_finish *)data);
+		break;
+	case PSP_IOC_ATTESTATION:
+		ret = psp_attestation((struct psp_attestation *)data);
+		break;
+	case PSP_IOC_ACTIVATE:
+		ret = psp_activate((struct psp_activate *)data);
+		break;
+	case PSP_IOC_DEACTIVATE:
+		ret = psp_deactivate((struct psp_deactivate *)data);
+		break;
+	case PSP_IOC_GUEST_SHUTDOWN:
+		ret = psp_guest_shutdown((struct psp_guest_shutdown *)data);
+		break;
+	case PSP_IOC_SNP_GET_PSTATUS:
+		ret =
+		    psp_snp_get_pstatus((struct psp_snp_platform_status *)data);
+		break;
+	default:
+		ret = ENOTTY;
+		break;
+	}
+
+	rw_exit_write(&ccp_softc->sc_lock);
+
+	return (ret);
+}
+
+int
+pledge_ioctl_psp(struct proc *p, long com)
+{
+	switch (com) {
+	case PSP_IOC_GET_PSTATUS:
+	case PSP_IOC_DF_FLUSH:
+	case PSP_IOC_GET_GSTATUS:
+	case PSP_IOC_LAUNCH_START:
+	case PSP_IOC_LAUNCH_UPDATE_DATA:
+	case PSP_IOC_LAUNCH_MEASURE:
+	case PSP_IOC_LAUNCH_FINISH:
+	case PSP_IOC_ACTIVATE:
+	case PSP_IOC_GUEST_SHUTDOWN:
+		return (0);
+	default:
+		return (pledge_fail(p, EPERM, PLEDGE_VMM));
+	}
+}
diff --git a/sys/dev/ic/pspvar.h b/sys/dev/ic/pspvar.h
new file mode 100644
index 00000000000..84f715d83e0
--- /dev/null
+++ b/sys/dev/ic/pspvar.h
@@ -0,0 +1,255 @@
+/*	$OpenBSD: pspvar.h,v 1.1 2024/09/03 00:23:05 jsg Exp $ */
+
+/*
+ * Copyright (c) 2023, 2024 Hans-Joerg Hoexer <hshoexer@genua.de>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/ioctl.h>
+
+/* AMD 17h */
+#define PSP_REG_INTEN		0x10690
+#define PSP_REG_INTSTS		0x10694
+#define PSP_REG_CMDRESP		0x10980
+#define PSP_REG_ADDRLO		0x109e0
+#define PSP_REG_ADDRHI		0x109e4
+#define PSP_REG_CAPABILITIES	0x109fc
+
+#define PSP_PSTATE_UNINIT	0x0
+#define PSP_PSTATE_INIT		0x1
+#define PSP_PSTATE_WORKING	0x2
+
+#define PSP_GSTATE_UNINIT	0x0
+#define PSP_GSTATE_LUPDATE	0x1
+#define PSP_GSTATE_LSECRET	0x2
+#define PSP_GSTATE_RUNNING	0x3
+#define PSP_GSTATE_SUPDATE	0x4
+#define PSP_GSTATE_RUPDATE	0x5
+#define PSP_GSTATE_SENT		0x6
+
+#define PSP_CAP_SEV					(1 << 0)
+#define PSP_CAP_TEE					(1 << 1)
+#define PSP_CAP_DBC_THRU_EXT				(1 << 2)
+#define PSP_CAP_SECURITY_REPORTING			(1 << 7)
+#define PSP_CAP_SECURITY_FUSED_PART			(1 << 8)
+#define PSP_CAP_SECURITY_DEBUG_LOCK_ON			(1 << 10)
+#define PSP_CAP_SECURITY_TSME_STATUS			(1 << 13)
+#define PSP_CAP_SECURITY_ANTI_ROLLBACK_STATUS		(1 << 15)
+#define PSP_CAP_SECURITY_RPMC_PRODUCTION_ENABLED	(1 << 16)
+#define PSP_CAP_SECURITY_RPMC_SPIROM_AVAILABLE		(1 << 17)
+#define PSP_CAP_SECURITY_HSP_TPM_AVAILABLE		(1 << 18)
+#define PSP_CAP_SECURITY_ROM_ARMOR_ENFORCED		(1 << 19)
+
+#define PSP_CAP_BITS	"\20\001SEV\002TEE\003DBC_THRU_EXT\010REPORTING\011FUSED_PART\013DEBUG_LOCK_ON\016TSME_STATUS\020ANTI_ROLLBACK_STATUS\021RPMC_PRODUCTION_ENABLED\022RPMC_SPIROM_AVAILABLE\023HSP_TPM_AVAILABLE\024ROM_ARMOR_ENFORCED"
+
+#define PSP_CMDRESP_IOC		(1 << 0)
+#define PSP_CMDRESP_COMPLETE	(1 << 1)
+#define PSP_CMDRESP_RESPONSE	(1 << 31)
+
+#define PSP_STATUS_MASK				0xffff
+#define PSP_STATUS_SUCCESS			0x0000
+#define PSP_STATUS_INVALID_PLATFORM_STATE	0x0001
+
+#define PSP_TMR_SIZE		(1024*1024)	/* 1 Mb */
+
+#define PSP_SUCCESS		0x0000
+#define PSP_INVALID_ADDRESS	0x0009
+
+/* Selection of PSP commands of the SEV API Version 0.24 */
+
+#define PSP_CMD_INIT			0x1
+#define PSP_CMD_PLATFORMSTATUS		0x4
+#define PSP_CMD_DF_FLUSH		0xa
+#define PSP_CMD_DECOMMISSION		0x20
+#define PSP_CMD_ACTIVATE		0x21
+#define PSP_CMD_DEACTIVATE		0x22
+#define PSP_CMD_GUESTSTATUS		0x23
+#define PSP_CMD_LAUNCH_START		0x30
+#define PSP_CMD_LAUNCH_UPDATE_DATA	0x31
+#define PSP_CMD_LAUNCH_MEASURE		0x33
+#define PSP_CMD_LAUNCH_FINISH		0x35
+#define PSP_CMD_ATTESTATION		0x36
+
+struct psp_platform_status {
+	/* Output parameters from PSP_CMD_PLATFORMSTATUS */
+	uint8_t			api_major;
+	uint8_t			api_minor;
+	uint8_t			state;
+	uint8_t			owner;
+	uint32_t		cfges_build;
+	uint32_t		guest_count;
+} __packed;
+
+struct psp_guest_status {
+	/* Input parameter for PSP_CMD_GUESTSTATUS */
+	uint32_t		handle;
+
+	/* Output parameters from PSP_CMD_GUESTSTATUS */
+	uint32_t		policy;
+	uint32_t		asid;
+	uint8_t			state;
+} __packed;
+
+struct psp_launch_start {
+	/* Input/Output parameter for PSP_CMD_LAUNCH_START */
+	uint32_t		handle;
+
+	/* Input parameters for PSP_CMD_LAUNCH_START */
+	uint32_t		policy;
+
+	/* The following input parameters are not used yet */
+	uint64_t		dh_cert_paddr;
+	uint32_t		dh_cert_len;
+	uint32_t		reserved;
+	uint64_t		session_paddr;
+	uint32_t		session_len;
+} __packed;
+
+struct psp_launch_update_data {
+	/* Input parameters for PSP_CMD_LAUNCH_UPDATE_DATA */
+	uint32_t		handle;
+	uint32_t		reserved;
+	uint64_t		paddr;
+	uint32_t		length;
+} __packed;
+
+struct psp_measure {
+	/* Output buffer for PSP_CMD_LAUNCH_MEASURE */
+	uint8_t			measure[32];
+	uint8_t			measure_nonce[16];
+} __packed;
+
+struct psp_launch_measure {
+	/* Input parameters for PSP_CMD_LAUNCH_MEASURE */
+	uint32_t		handle;
+	uint32_t		reserved;
+	uint64_t		measure_paddr;
+
+	/* Input/output parameter for PSP_CMD_LAUNCH_MEASURE */
+	uint32_t		measure_len;
+	uint32_t		padding;
+
+	/* Output buffer from PSP_CMD_LAUNCH_MEASURE */
+	struct psp_measure	psp_measure;	/* 64bit aligned */
+#define measure		psp_measure.measure
+#define measure_nonce	psp_measure.measure_nonce
+} __packed;
+
+struct psp_launch_finish {
+	/* Input parameter for PSP_CMD_LAUNCH_FINISH */
+	uint32_t		handle;
+} __packed;
+
+struct psp_report {
+	/* Output buffer for PSP_CMD_ATTESTATION */
+	uint8_t			report_nonce[16];
+	uint8_t			report_launch_digest[32];
+	uint32_t		report_policy;
+	uint32_t		report_sig_usage;
+	uint32_t		report_sig_algo;
+	uint32_t		reserved2;
+	uint8_t			report_sig1[144];
+} __packed;
+
+struct psp_attestation {
+	/* Input parameters for PSP_CMD_ATTESTATION */
+	uint32_t		handle;
+	uint32_t		reserved;
+	uint64_t		attest_paddr;
+	uint8_t			attest_nonce[16];
+
+	/* Input/output parameter from PSP_CMD_ATTESTATION */
+	uint32_t		attest_len;
+	uint32_t		padding;
+
+	/* Output parameter from PSP_CMD_ATTESTATION */
+	struct psp_report	psp_report;	/* 64bit aligned */
+#define report_nonce		psp_report.report_nonce
+#define report_launch_digest	psp_report.report_launch_digest
+#define report_policy		psp_report.report_policy
+#define report_sig_usage	psp_report.report_sig_usage;
+#define report_report_sig_alg	psp_report.report_sig_algo;
+#define report_report_sig1	psp_report.report_sig1;
+} __packed;
+
+struct psp_activate {
+	/* Input parameters for PSP_CMD_ACTIVATE */
+	uint32_t		handle;
+	uint32_t		asid;
+} __packed;
+
+struct psp_deactivate {
+	/* Input parameter for PSP_CMD_DEACTIVATE */
+	uint32_t		handle;
+} __packed;
+
+struct psp_decommission {
+	/* Input parameter for PSP_CMD_DECOMMISSION */
+	uint32_t		handle;
+} __packed;
+
+struct psp_init {
+	/* Output parameters from PSP_CMD_INIT */
+	uint32_t		enable_es;
+	uint32_t		reserved;
+	uint64_t		tmr_paddr;
+	uint32_t		tmr_length;
+} __packed;
+
+
+struct psp_guest_shutdown {
+	/* Input parameter for PSP_CMD_GUEST_SHUTDOWN */
+	uint32_t		handle;
+} __packed;
+
+/* Selection of PSP commands of the SEV-SNP ABI Version 1.55 */
+
+#define PSP_CMD_SNP_PLATFORMSTATUS	0x81
+
+struct psp_snp_platform_status {
+	uint8_t			api_major;
+	uint8_t			api_minor;
+	uint8_t			state;
+	uint8_t			is_rmp_init;
+	uint32_t		build;
+	uint32_t		features;
+	uint32_t		guest_count;
+	uint64_t		current_tcb;
+	uint64_t		reported_tcb;
+} __packed;
+
+#define PSP_IOC_GET_PSTATUS	_IOR('P', 0, struct psp_platform_status)
+#define PSP_IOC_DF_FLUSH	_IO('P', 1)
+#define PSP_IOC_DECOMMISSION	_IOW('P', 2, struct psp_decommission)
+#define PSP_IOC_GET_GSTATUS	_IOWR('P', 3, struct psp_guest_status)
+#define PSP_IOC_LAUNCH_START	_IOWR('P', 4, struct psp_launch_start)
+#define PSP_IOC_LAUNCH_UPDATE_DATA \
+				_IOW('P', 5, struct psp_launch_update_data)
+#define PSP_IOC_LAUNCH_MEASURE	_IOWR('P', 6, struct psp_launch_measure)
+#define PSP_IOC_LAUNCH_FINISH	_IOW('P', 7, struct psp_launch_finish)
+#define PSP_IOC_ATTESTATION	_IOWR('P', 8, struct psp_attestation)
+#define PSP_IOC_ACTIVATE	_IOW('P', 9, struct psp_activate)
+#define PSP_IOC_DEACTIVATE	_IOW('P', 10, struct psp_deactivate)
+#define PSP_IOC_SNP_GET_PSTATUS	_IOR('P', 11, struct psp_snp_platform_status)
+#define PSP_IOC_GUEST_SHUTDOWN	_IOW('P', 255, struct psp_guest_shutdown)
+
+#ifdef _KERNEL
+
+int	psp_attach(struct ccp_softc *);
+
+int	pspclose(dev_t, int, int, struct proc *);
+int	pspopen(dev_t, int, int, struct proc *);
+int	pspioctl(dev_t, u_long, caddr_t, int, struct proc *);
+
+#endif	/* _KERNEL */