From: Ashish Kalra <Ashish.Kalra@amd.com>
To: <x86@kernel.org>, <linux-kernel@vger.kernel.org>,
<kvm@vger.kernel.org>, <linux-coco@lists.linux.dev>,
<linux-mm@kvack.org>, <linux-crypto@vger.kernel.org>
Cc: <tglx@linutronix.de>, <mingo@redhat.com>, <jroedel@suse.de>,
<thomas.lendacky@amd.com>, <hpa@zytor.com>, <ardb@kernel.org>,
<pbonzini@redhat.com>, <seanjc@google.com>, <vkuznets@redhat.com>,
<jmattson@google.com>, <luto@kernel.org>,
<dave.hansen@linux.intel.com>, <slp@redhat.com>,
<pgonda@google.com>, <peterz@infradead.org>,
<srinivas.pandruvada@linux.intel.com>, <rientjes@google.com>,
<dovmurik@linux.ibm.com>, <tobin@ibm.com>, <bp@alien8.de>,
<michael.roth@amd.com>, <vbabka@suse.cz>, <kirill@shutemov.name>,
<ak@linux.intel.com>, <tony.luck@intel.com>, <marcorr@google.com>,
<sathyanarayanan.kuppuswamy@linux.intel.com>,
<alpergun@google.com>, <dgilbert@redhat.com>, <jarkko@kernel.org>
Subject: [PATCH Part2 v6 15/49] crypto: ccp: Handle the legacy SEV command when SNP is enabled
Date: Mon, 20 Jun 2022 23:05:16 +0000 [thread overview]
Message-ID: <7f427693d5c5e934740913063bad0087156c86b2.1655761627.git.ashish.kalra@amd.com> (raw)
In-Reply-To: <cover.1655761627.git.ashish.kalra@amd.com>
From: Brijesh Singh <brijesh.singh@amd.com>
The behavior of the SEV-legacy commands is altered when the SNP firmware
is in the INIT state. When SNP is in INIT state, all the SEV-legacy
commands that cause the firmware to write to memory must be in the
firmware state before issuing the command..
A command buffer may contains a system physical address that the firmware
may write to. There are two cases that need to be handled:
1) system physical address points to a guest memory
2) system physical address points to a host memory
To handle the case #1, change the page state to the firmware in the RMP
table before issuing the command and restore the state to shared after the
command completes.
For the case #2, use a bounce buffer to complete the request.
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
---
drivers/crypto/ccp/sev-dev.c | 346 ++++++++++++++++++++++++++++++++++-
drivers/crypto/ccp/sev-dev.h | 12 ++
2 files changed, 348 insertions(+), 10 deletions(-)
diff --git a/drivers/crypto/ccp/sev-dev.c b/drivers/crypto/ccp/sev-dev.c
index 0dbd99f29b25..75f5c4ed9ac3 100644
--- a/drivers/crypto/ccp/sev-dev.c
+++ b/drivers/crypto/ccp/sev-dev.c
@@ -441,12 +441,295 @@ static void sev_write_init_ex_file_if_required(int cmd_id)
sev_write_init_ex_file();
}
+static int alloc_snp_host_map(struct sev_device *sev)
+{
+ struct page *page;
+ int i;
+
+ for (i = 0; i < MAX_SNP_HOST_MAP_BUFS; i++) {
+ struct snp_host_map *map = &sev->snp_host_map[i];
+
+ memset(map, 0, sizeof(*map));
+
+ page = alloc_pages(GFP_KERNEL_ACCOUNT, get_order(SEV_FW_BLOB_MAX_SIZE));
+ if (!page)
+ return -ENOMEM;
+
+ map->host = page_address(page);
+ }
+
+ return 0;
+}
+
+static void free_snp_host_map(struct sev_device *sev)
+{
+ int i;
+
+ for (i = 0; i < MAX_SNP_HOST_MAP_BUFS; i++) {
+ struct snp_host_map *map = &sev->snp_host_map[i];
+
+ if (map->host) {
+ __free_pages(virt_to_page(map->host), get_order(SEV_FW_BLOB_MAX_SIZE));
+ memset(map, 0, sizeof(*map));
+ }
+ }
+}
+
+static int map_firmware_writeable(u64 *paddr, u32 len, bool guest, struct snp_host_map *map)
+{
+ unsigned int npages = PAGE_ALIGN(len) >> PAGE_SHIFT;
+
+ map->active = false;
+
+ if (!paddr || !len)
+ return 0;
+
+ map->paddr = *paddr;
+ map->len = len;
+
+ /* If paddr points to a guest memory then change the page state to firmwware. */
+ if (guest) {
+ if (snp_set_rmp_state(*paddr, npages, true, true, false))
+ return -EFAULT;
+
+ goto done;
+ }
+
+ if (!map->host)
+ return -ENOMEM;
+
+ /* Check if the pre-allocated buffer can be used to fullfil the request. */
+ if (len > SEV_FW_BLOB_MAX_SIZE)
+ return -EINVAL;
+
+ /* Transition the pre-allocated buffer to the firmware state. */
+ if (snp_set_rmp_state(__pa(map->host), npages, true, true, false))
+ return -EFAULT;
+
+ /* Set the paddr to use pre-allocated firmware buffer */
+ *paddr = __psp_pa(map->host);
+
+done:
+ map->active = true;
+ return 0;
+}
+
+static int unmap_firmware_writeable(u64 *paddr, u32 len, bool guest, struct snp_host_map *map)
+{
+ unsigned int npages = PAGE_ALIGN(len) >> PAGE_SHIFT;
+
+ if (!map->active)
+ return 0;
+
+ /* If paddr points to a guest memory then restore the page state to hypervisor. */
+ if (guest) {
+ if (snp_set_rmp_state(*paddr, npages, false, true, true))
+ return -EFAULT;
+
+ goto done;
+ }
+
+ /*
+ * Transition the pre-allocated buffer to hypervisor state before the access.
+ *
+ * This is because while changing the page state to firmware, the kernel unmaps
+ * the pages from the direct map, and to restore the direct map we must
+ * transition the pages to shared state.
+ */
+ if (snp_set_rmp_state(__pa(map->host), npages, false, true, true))
+ return -EFAULT;
+
+ /* Copy the response data firmware buffer to the callers buffer. */
+ memcpy(__va(__sme_clr(map->paddr)), map->host, min_t(size_t, len, map->len));
+ *paddr = map->paddr;
+
+done:
+ map->active = false;
+ return 0;
+}
+
+static bool sev_legacy_cmd_buf_writable(int cmd)
+{
+ switch (cmd) {
+ case SEV_CMD_PLATFORM_STATUS:
+ case SEV_CMD_GUEST_STATUS:
+ case SEV_CMD_LAUNCH_START:
+ case SEV_CMD_RECEIVE_START:
+ case SEV_CMD_LAUNCH_MEASURE:
+ case SEV_CMD_SEND_START:
+ case SEV_CMD_SEND_UPDATE_DATA:
+ case SEV_CMD_SEND_UPDATE_VMSA:
+ case SEV_CMD_PEK_CSR:
+ case SEV_CMD_PDH_CERT_EXPORT:
+ case SEV_CMD_GET_ID:
+ case SEV_CMD_ATTESTATION_REPORT:
+ return true;
+ default:
+ return false;
+ }
+}
+
+#define prep_buffer(name, addr, len, guest, map) \
+ func(&((typeof(name *))cmd_buf)->addr, ((typeof(name *))cmd_buf)->len, guest, map)
+
+static int __snp_cmd_buf_copy(int cmd, void *cmd_buf, bool to_fw, int fw_err)
+{
+ int (*func)(u64 *paddr, u32 len, bool guest, struct snp_host_map *map);
+ struct sev_device *sev = psp_master->sev_data;
+ bool from_fw = !to_fw;
+
+ /*
+ * After the command is completed, change the command buffer memory to
+ * hypervisor state.
+ *
+ * The immutable bit is automatically cleared by the firmware, so
+ * no not need to reclaim the page.
+ */
+ if (from_fw && sev_legacy_cmd_buf_writable(cmd)) {
+ if (snp_set_rmp_state(__pa(cmd_buf), 1, false, true, false))
+ return -EFAULT;
+
+ /* No need to go further if firmware failed to execute command. */
+ if (fw_err)
+ return 0;
+ }
+
+ if (to_fw)
+ func = map_firmware_writeable;
+ else
+ func = unmap_firmware_writeable;
+
+ /*
+ * A command buffer may contains a system physical address. If the address
+ * points to a host memory then use an intermediate firmware page otherwise
+ * change the page state in the RMP table.
+ */
+ switch (cmd) {
+ case SEV_CMD_PDH_CERT_EXPORT:
+ if (prep_buffer(struct sev_data_pdh_cert_export, pdh_cert_address,
+ pdh_cert_len, false, &sev->snp_host_map[0]))
+ goto err;
+ if (prep_buffer(struct sev_data_pdh_cert_export, cert_chain_address,
+ cert_chain_len, false, &sev->snp_host_map[1]))
+ goto err;
+ break;
+ case SEV_CMD_GET_ID:
+ if (prep_buffer(struct sev_data_get_id, address, len,
+ false, &sev->snp_host_map[0]))
+ goto err;
+ break;
+ case SEV_CMD_PEK_CSR:
+ if (prep_buffer(struct sev_data_pek_csr, address, len,
+ false, &sev->snp_host_map[0]))
+ goto err;
+ break;
+ case SEV_CMD_LAUNCH_UPDATE_DATA:
+ if (prep_buffer(struct sev_data_launch_update_data, address, len,
+ true, &sev->snp_host_map[0]))
+ goto err;
+ break;
+ case SEV_CMD_LAUNCH_UPDATE_VMSA:
+ if (prep_buffer(struct sev_data_launch_update_vmsa, address, len,
+ true, &sev->snp_host_map[0]))
+ goto err;
+ break;
+ case SEV_CMD_LAUNCH_MEASURE:
+ if (prep_buffer(struct sev_data_launch_measure, address, len,
+ false, &sev->snp_host_map[0]))
+ goto err;
+ break;
+ case SEV_CMD_LAUNCH_UPDATE_SECRET:
+ if (prep_buffer(struct sev_data_launch_secret, guest_address, guest_len,
+ true, &sev->snp_host_map[0]))
+ goto err;
+ break;
+ case SEV_CMD_DBG_DECRYPT:
+ if (prep_buffer(struct sev_data_dbg, dst_addr, len, false,
+ &sev->snp_host_map[0]))
+ goto err;
+ break;
+ case SEV_CMD_DBG_ENCRYPT:
+ if (prep_buffer(struct sev_data_dbg, dst_addr, len, true,
+ &sev->snp_host_map[0]))
+ goto err;
+ break;
+ case SEV_CMD_ATTESTATION_REPORT:
+ if (prep_buffer(struct sev_data_attestation_report, address, len,
+ false, &sev->snp_host_map[0]))
+ goto err;
+ break;
+ case SEV_CMD_SEND_START:
+ if (prep_buffer(struct sev_data_send_start, session_address,
+ session_len, false, &sev->snp_host_map[0]))
+ goto err;
+ break;
+ case SEV_CMD_SEND_UPDATE_DATA:
+ if (prep_buffer(struct sev_data_send_update_data, hdr_address, hdr_len,
+ false, &sev->snp_host_map[0]))
+ goto err;
+ if (prep_buffer(struct sev_data_send_update_data, trans_address,
+ trans_len, false, &sev->snp_host_map[1]))
+ goto err;
+ break;
+ case SEV_CMD_SEND_UPDATE_VMSA:
+ if (prep_buffer(struct sev_data_send_update_vmsa, hdr_address, hdr_len,
+ false, &sev->snp_host_map[0]))
+ goto err;
+ if (prep_buffer(struct sev_data_send_update_vmsa, trans_address,
+ trans_len, false, &sev->snp_host_map[1]))
+ goto err;
+ break;
+ case SEV_CMD_RECEIVE_UPDATE_DATA:
+ if (prep_buffer(struct sev_data_receive_update_data, guest_address,
+ guest_len, true, &sev->snp_host_map[0]))
+ goto err;
+ break;
+ case SEV_CMD_RECEIVE_UPDATE_VMSA:
+ if (prep_buffer(struct sev_data_receive_update_vmsa, guest_address,
+ guest_len, true, &sev->snp_host_map[0]))
+ goto err;
+ break;
+ default:
+ break;
+ }
+
+ /* The command buffer need to be in the firmware state. */
+ if (to_fw && sev_legacy_cmd_buf_writable(cmd)) {
+ if (snp_set_rmp_state(__pa(cmd_buf), 1, true, true, false))
+ return -EFAULT;
+ }
+
+ return 0;
+
+err:
+ return -EINVAL;
+}
+
+static inline bool need_firmware_copy(int cmd)
+{
+ struct sev_device *sev = psp_master->sev_data;
+
+ /* After SNP is INIT'ed, the behavior of legacy SEV command is changed. */
+ return ((cmd < SEV_CMD_SNP_INIT) && sev->snp_inited) ? true : false;
+}
+
+static int snp_aware_copy_to_firmware(int cmd, void *data)
+{
+ return __snp_cmd_buf_copy(cmd, data, true, 0);
+}
+
+static int snp_aware_copy_from_firmware(int cmd, void *data, int fw_err)
+{
+ return __snp_cmd_buf_copy(cmd, data, false, fw_err);
+}
+
static int __sev_do_cmd_locked(int cmd, void *data, int *psp_ret)
{
struct psp_device *psp = psp_master;
struct sev_device *sev;
unsigned int phys_lsb, phys_msb;
unsigned int reg, ret = 0;
+ void *cmd_buf;
int buf_len;
if (!psp || !psp->sev_data)
@@ -466,12 +749,28 @@ static int __sev_do_cmd_locked(int cmd, void *data, int *psp_ret)
* work for some memory, e.g. vmalloc'd addresses, and @data may not be
* physically contiguous.
*/
- if (data)
- memcpy(sev->cmd_buf, data, buf_len);
+ if (data) {
+ if (sev->cmd_buf_active > 2)
+ return -EBUSY;
+
+ cmd_buf = sev->cmd_buf_active ? sev->cmd_buf_backup : sev->cmd_buf;
+
+ memcpy(cmd_buf, data, buf_len);
+ sev->cmd_buf_active++;
+
+ /*
+ * The behavior of the SEV-legacy commands is altered when the
+ * SNP firmware is in the INIT state.
+ */
+ if (need_firmware_copy(cmd) && snp_aware_copy_to_firmware(cmd, sev->cmd_buf))
+ return -EFAULT;
+ } else {
+ cmd_buf = sev->cmd_buf;
+ }
/* Get the physical address of the command buffer */
- phys_lsb = data ? lower_32_bits(__psp_pa(sev->cmd_buf)) : 0;
- phys_msb = data ? upper_32_bits(__psp_pa(sev->cmd_buf)) : 0;
+ phys_lsb = data ? lower_32_bits(__psp_pa(cmd_buf)) : 0;
+ phys_msb = data ? upper_32_bits(__psp_pa(cmd_buf)) : 0;
dev_dbg(sev->dev, "sev command id %#x buffer 0x%08x%08x timeout %us\n",
cmd, phys_msb, phys_lsb, psp_timeout);
@@ -514,15 +813,24 @@ static int __sev_do_cmd_locked(int cmd, void *data, int *psp_ret)
sev_write_init_ex_file_if_required(cmd);
}
- print_hex_dump_debug("(out): ", DUMP_PREFIX_OFFSET, 16, 2, data,
- buf_len, false);
-
/*
* Copy potential output from the PSP back to data. Do this even on
* failure in case the caller wants to glean something from the error.
*/
- if (data)
- memcpy(data, sev->cmd_buf, buf_len);
+ if (data) {
+ /*
+ * Restore the page state after the command completes.
+ */
+ if (need_firmware_copy(cmd) &&
+ snp_aware_copy_from_firmware(cmd, cmd_buf, ret))
+ return -EFAULT;
+
+ memcpy(data, cmd_buf, buf_len);
+ sev->cmd_buf_active--;
+ }
+
+ print_hex_dump_debug("(out): ", DUMP_PREFIX_OFFSET, 16, 2, data,
+ buf_len, false);
return ret;
}
@@ -1451,10 +1759,12 @@ int sev_dev_init(struct psp_device *psp)
if (!sev)
goto e_err;
- sev->cmd_buf = (void *)devm_get_free_pages(dev, GFP_KERNEL, 0);
+ sev->cmd_buf = (void *)devm_get_free_pages(dev, GFP_KERNEL, 1);
if (!sev->cmd_buf)
goto e_sev;
+ sev->cmd_buf_backup = (uint8_t *)sev->cmd_buf + PAGE_SIZE;
+
psp->sev_data = sev;
sev->dev = dev;
@@ -1513,6 +1823,12 @@ static void sev_firmware_shutdown(struct sev_device *sev)
sev_init_ex_buffer = NULL;
}
+ /*
+ * The host map need to clear the immutable bit so it must be free'd before the
+ * SNP firmware shutdown.
+ */
+ free_snp_host_map(sev);
+
sev_snp_shutdown(NULL);
}
@@ -1588,6 +1904,14 @@ void sev_pci_init(void)
dev_err(sev->dev, "SEV-SNP: failed to INIT error %#x\n", error);
}
}
+
+ /*
+ * Allocate the intermediate buffers used for the legacy command handling.
+ */
+ if (alloc_snp_host_map(sev)) {
+ dev_notice(sev->dev, "Failed to alloc host map (disabling legacy SEV)\n");
+ goto skip_legacy;
+ }
}
/* Obtain the TMR memory area for SEV-ES use */
@@ -1605,12 +1929,14 @@ void sev_pci_init(void)
dev_err(sev->dev, "SEV: failed to INIT error %#x, rc %d\n",
error, rc);
+skip_legacy:
dev_info(sev->dev, "SEV%s API:%d.%d build:%d\n", sev->snp_inited ?
"-SNP" : "", sev->api_major, sev->api_minor, sev->build);
return;
err:
+ free_snp_host_map(sev);
psp_master->sev_data = NULL;
}
diff --git a/drivers/crypto/ccp/sev-dev.h b/drivers/crypto/ccp/sev-dev.h
index 186ad20cbd24..fe5d7a3ebace 100644
--- a/drivers/crypto/ccp/sev-dev.h
+++ b/drivers/crypto/ccp/sev-dev.h
@@ -29,11 +29,20 @@
#define SEV_CMDRESP_CMD_SHIFT 16
#define SEV_CMDRESP_IOC BIT(0)
+#define MAX_SNP_HOST_MAP_BUFS 2
+
struct sev_misc_dev {
struct kref refcount;
struct miscdevice misc;
};
+struct snp_host_map {
+ u64 paddr;
+ u32 len;
+ void *host;
+ bool active;
+};
+
struct sev_device {
struct device *dev;
struct psp_device *psp;
@@ -52,8 +61,11 @@ struct sev_device {
u8 build;
void *cmd_buf;
+ void *cmd_buf_backup;
+ int cmd_buf_active;
bool snp_inited;
+ struct snp_host_map snp_host_map[MAX_SNP_HOST_MAP_BUFS];
};
int sev_dev_init(struct psp_device *psp);
--
2.25.1
next prev parent reply other threads:[~2022-06-20 23:06 UTC|newest]
Thread overview: 305+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-20 22:56 [PATCH Part2 v6 00/49] Add AMD Secure Nested Paging (SEV-SNP) Ashish Kalra
2022-06-20 22:59 ` [PATCH Part2 v6 01/49] x86/cpufeatures: Add SEV-SNP CPU feature Ashish Kalra
2022-06-21 8:58 ` Borislav Petkov
2022-06-20 22:59 ` [PATCH Part2 v6 02/49] iommu/amd: Introduce function to check SEV-SNP support Ashish Kalra
2022-06-21 15:28 ` Peter Gonda
2022-06-21 17:45 ` Kalra, Ashish
2022-06-21 17:50 ` Peter Gonda
2022-06-22 7:33 ` Suthikulpanit, Suravee
2022-08-25 1:28 ` jarkko
2022-08-25 1:30 ` Jarkko Sakkinen
2022-08-26 18:54 ` Kalra, Ashish
2022-08-28 4:18 ` Jarkko Sakkinen
2022-07-01 10:42 ` Borislav Petkov
2022-07-05 13:56 ` Kalra, Ashish
2022-07-05 14:33 ` Borislav Petkov
2022-07-05 14:53 ` Kalra, Ashish
2022-06-20 23:02 ` [PATCH Part2 v6 03/49] x86/sev: Add the host SEV-SNP initialization support Ashish Kalra
2022-06-21 15:47 ` Peter Gonda
2022-06-21 17:59 ` Kalra, Ashish
2022-06-23 20:48 ` Marc Orr
2022-06-23 22:22 ` Kalra, Ashish
2022-07-17 10:01 ` Borislav Petkov
2022-07-19 3:56 ` Kalra, Ashish
2022-07-19 8:38 ` Borislav Petkov
2022-07-19 11:34 ` Kalra, Ashish
2022-06-20 23:02 ` [PATCH Part2 v6 04/49] x86/sev: set SYSCFG.MFMD Ashish Kalra
2022-06-23 21:00 ` Marc Orr
2022-07-21 11:29 ` Borislav Petkov
2022-08-01 21:16 ` Kalra, Ashish
2022-06-20 23:02 ` [PATCH Part2 v6 05/49] x86/sev: Add RMP entry lookup helpers Ashish Kalra
2022-06-22 14:13 ` Dave Hansen
2022-06-22 14:22 ` Kalra, Ashish
2022-06-22 14:29 ` Dave Hansen
2022-06-22 18:15 ` Kalra, Ashish
2022-06-22 18:17 ` Dave Hansen
2022-06-22 18:34 ` Kalra, Ashish
2022-06-22 18:42 ` Dave Hansen
2022-06-22 19:43 ` Kalra, Ashish
2022-06-22 19:49 ` Dave Hansen
2022-06-22 20:15 ` Kalra, Ashish
2022-06-22 20:58 ` Kalra, Ashish
2022-06-23 22:36 ` Sean Christopherson
2022-06-23 22:43 ` Kalra, Ashish
2022-07-22 11:35 ` Borislav Petkov
2022-07-22 19:04 ` Sean Christopherson
2022-07-22 19:25 ` Borislav Petkov
2022-07-22 19:38 ` Borislav Petkov
2022-08-01 21:53 ` Kalra, Ashish
2022-07-22 22:16 ` Sean Christopherson
2022-07-22 22:25 ` Borislav Petkov
2022-08-01 21:50 ` Kalra, Ashish
2022-06-23 21:30 ` Marc Orr
2022-07-22 11:43 ` Borislav Petkov
2022-08-01 21:45 ` Kalra, Ashish
2022-07-25 14:32 ` Borislav Petkov
2022-08-01 22:04 ` Kalra, Ashish
2022-06-20 23:02 ` [PATCH Part2 v6 06/49] x86/sev: Add helper functions for RMPUPDATE and PSMASH instruction Ashish Kalra
2022-06-21 16:40 ` Dr. David Alan Gilbert
2022-06-21 17:38 ` Kalra, Ashish
2022-06-22 18:17 ` Kalra, Ashish
2022-06-28 10:50 ` Dr. David Alan Gilbert
2022-06-28 17:57 ` Kalra, Ashish
2022-06-28 18:58 ` Dr. David Alan Gilbert
2022-06-28 19:03 ` Dave Hansen
2022-07-25 13:24 ` Borislav Petkov
2022-08-01 23:32 ` Kalra, Ashish
2022-08-02 14:14 ` Borislav Petkov
2022-06-22 14:26 ` Dave Hansen
2022-06-22 18:04 ` Kalra, Ashish
2022-07-24 17:31 ` Dov Murik
2022-08-02 4:49 ` Kalra, Ashish
2022-07-25 14:36 ` Borislav Petkov
2022-08-01 22:31 ` Kalra, Ashish
2022-08-03 20:26 ` Borislav Petkov
2022-06-20 23:03 ` [PATCH Part2 v6 07/49] x86/sev: Invalid pages from direct map when adding it to RMP table Ashish Kalra
2022-06-24 0:06 ` Marc Orr
2022-07-27 17:01 ` Borislav Petkov
2022-08-01 23:57 ` Kalra, Ashish
2022-08-04 12:11 ` Borislav Petkov
2022-11-02 3:12 ` Kalra, Ashish
2022-11-02 11:27 ` Borislav Petkov
2022-12-19 15:00 ` Michael Roth
2022-12-19 20:08 ` Borislav Petkov
2022-12-27 21:49 ` Kalra, Ashish
2022-12-29 17:09 ` Borislav Petkov
2023-01-05 21:46 ` Kalra, Ashish
2023-01-05 22:08 ` Marc Orr
2023-01-05 22:27 ` Kalra, Ashish
2023-01-05 22:31 ` Marc Orr
2022-12-30 15:19 ` Mike Rapoport
2022-06-20 23:03 ` [PATCH Part2 v6 08/49] x86/traps: Define RMP violation #PF error code Ashish Kalra
2022-08-08 13:13 ` Borislav Petkov
2022-06-20 23:03 ` [PATCH Part2 v6 09/49] x86/fault: Add support to handle the RMP fault for user address Ashish Kalra
2022-06-22 14:29 ` Jeremi Piotrowski
2022-07-12 11:57 ` Jarkko Sakkinen
2022-07-12 14:29 ` Kalra, Ashish
2022-07-12 14:54 ` Jarkko Sakkinen
2022-08-09 16:55 ` Borislav Petkov
2022-08-10 3:59 ` Kalra, Ashish
2022-08-10 9:42 ` Borislav Petkov
2022-08-10 22:00 ` Kalra, Ashish
2022-08-11 14:27 ` Borislav Petkov
2022-09-01 20:32 ` Kalra, Ashish
2022-09-02 6:52 ` Borislav Petkov
2022-09-02 15:33 ` Kalra, Ashish
2022-09-03 4:25 ` Borislav Petkov
2022-09-03 5:51 ` Kalra, Ashish
2022-09-03 6:57 ` Kalra, Ashish
2022-09-03 8:31 ` Boris Petkov
2022-09-03 17:30 ` Kalra, Ashish
2022-09-04 6:37 ` Borislav Petkov
2022-09-06 14:06 ` Kalra, Ashish
2022-09-06 10:25 ` Jarkko Sakkinen
2022-09-06 10:33 ` Jarkko Sakkinen
2022-09-06 13:54 ` Marc Orr
2022-09-06 14:17 ` Kalra, Ashish
2022-09-06 15:06 ` Michael Roth
2022-09-06 16:39 ` Kalra, Ashish
2022-09-07 5:14 ` Marc Orr
2022-09-06 15:44 ` Jarkko Sakkinen
2022-09-08 7:46 ` Jarkko Sakkinen
2022-09-08 7:57 ` Jarkko Sakkinen
2022-08-11 15:15 ` vbabka
2022-09-06 2:30 ` Dave Hansen
2022-06-20 23:03 ` [PATCH Part2 v6 10/49] x86/fault: Add support to dump RMP entry on fault Ashish Kalra
2022-06-22 14:33 ` Jeremi Piotrowski
2022-06-22 14:42 ` Jeremi Piotrowski
2022-06-22 18:08 ` Kalra, Ashish
2022-08-23 13:21 ` Borislav Petkov
2022-06-20 23:04 ` [PATCH Part2 v6 11/49] crypto:ccp: Define the SEV-SNP commands Ashish Kalra
2022-09-20 13:03 ` Borislav Petkov
2022-09-20 13:46 ` Kalra, Ashish
2022-09-20 14:04 ` Borislav Petkov
2022-06-20 23:04 ` [PATCH Part2 v6 12/49] crypto: ccp: Add support to initialize the AMD-SP for SEV-SNP Ashish Kalra
2022-10-01 17:33 ` Borislav Petkov
2022-10-14 21:09 ` Kalra, Ashish
2022-10-14 21:31 ` Kalra, Ashish
2022-10-25 8:56 ` Borislav Petkov
2022-10-19 18:48 ` Kalra, Ashish
2022-10-23 21:17 ` Jarkko Sakkinen
2022-10-25 9:07 ` Borislav Petkov
2022-10-25 8:30 ` Borislav Petkov
2022-06-20 23:04 ` [PATCH Part2 v6 13/49] crypto:ccp: Provide APIs to issue SEV-SNP commands Ashish Kalra
2022-06-21 21:43 ` Peter Gonda
2022-06-22 1:44 ` Kalra, Ashish
2022-08-02 10:52 ` Jarkko Sakkinen
2022-10-01 20:17 ` Borislav Petkov
2022-10-03 14:38 ` Kalra, Ashish
2022-10-03 16:16 ` Borislav Petkov
2022-10-03 17:11 ` Kalra, Ashish
2022-10-03 17:45 ` Borislav Petkov
2022-10-03 18:01 ` Peter Gonda
2022-10-03 18:16 ` Borislav Petkov
2022-10-03 18:43 ` Kalra, Ashish
2022-10-03 18:53 ` Borislav Petkov
2022-06-20 23:05 ` [PATCH Part2 v6 14/49] crypto: ccp: Handle the legacy TMR allocation when SNP is enabled Ashish Kalra
2022-06-21 18:11 ` Peter Gonda
2022-06-21 20:17 ` Kalra, Ashish
2022-06-24 14:19 ` Peter Gonda
2022-08-02 12:17 ` jarkko
2022-08-02 11:17 ` Jarkko Sakkinen
2022-10-13 15:15 ` Borislav Petkov
2022-10-14 20:00 ` Kalra, Ashish
2022-10-25 10:25 ` Borislav Petkov
2022-10-31 20:10 ` Kalra, Ashish
2022-10-31 21:15 ` Borislav Petkov
2022-10-31 21:58 ` Kalra, Ashish
2022-11-02 11:22 ` Borislav Petkov
2022-11-14 23:36 ` Kalra, Ashish
2022-11-15 14:26 ` Borislav Petkov
2022-11-15 15:14 ` Vlastimil Babka
2022-11-15 15:22 ` Borislav Petkov
2022-11-15 16:27 ` Borislav Petkov
2022-11-15 22:44 ` Kalra, Ashish
2022-11-15 17:24 ` Kalra, Ashish
2022-11-15 18:15 ` Kalra, Ashish
2022-11-16 9:08 ` Vlastimil Babka
2022-11-16 10:19 ` Kalra, Ashish
2022-11-16 10:25 ` Vlastimil Babka
2022-11-16 18:01 ` Kalra, Ashish
2022-11-16 18:33 ` Borislav Petkov
2022-11-16 18:53 ` Kalra, Ashish
2022-11-16 19:09 ` Borislav Petkov
2022-11-16 19:23 ` Kalra, Ashish
2022-11-16 18:32 ` Dave Hansen
2022-11-16 5:19 ` HORIGUCHI NAOYA(堀口 直也)
2022-11-16 10:28 ` Kalra, Ashish
2022-11-16 23:41 ` HORIGUCHI NAOYA(堀口 直也)
2022-11-17 20:56 ` Kalra, Ashish
2022-11-20 21:34 ` Borislav Petkov
2022-11-22 0:37 ` Kalra, Ashish
2022-11-22 10:17 ` Borislav Petkov
2022-11-22 10:32 ` Kalra, Ashish
2022-11-22 10:44 ` Borislav Petkov
2022-11-22 11:44 ` Kalra, Ashish
2022-11-23 11:40 ` Borislav Petkov
2022-11-23 18:32 ` Kalra, Ashish
2022-06-20 23:05 ` Ashish Kalra [this message]
2022-06-20 23:05 ` [PATCH Part2 v6 16/49] crypto: ccp: Add the SNP_PLATFORM_STATUS command Ashish Kalra
2022-06-20 23:05 ` [PATCH Part2 v6 17/49] crypto: ccp: Add the SNP_{SET,GET}_EXT_CONFIG command Ashish Kalra
2022-06-21 22:13 ` Peter Gonda
2022-06-22 1:58 ` Kalra, Ashish
2022-08-02 12:31 ` Jarkko Sakkinen
2022-08-08 19:27 ` Dionna Amalie Glaze
2022-08-08 21:32 ` Tom Lendacky
2022-08-08 23:25 ` Dionna Amalie Glaze
2022-06-20 23:06 ` [PATCH Part2 v6 18/49] crypto: ccp: Provide APIs to query extended attestation report Ashish Kalra
2022-06-21 22:30 ` Peter Gonda
2022-08-02 12:39 ` Jarkko Sakkinen
2022-06-20 23:06 ` [PATCH Part2 v6 19/49] KVM: SVM: Add support to handle AP reset MSR protocol Ashish Kalra
2022-06-20 23:06 ` [PATCH Part2 v6 20/49] KVM: SVM: Provide the Hypervisor Feature support VMGEXIT Ashish Kalra
2022-06-20 23:06 ` [PATCH Part2 v6 21/49] KVM: SVM: Make AVIC backing, VMSA and VMCB memory allocation SNP safe Ashish Kalra
2022-08-04 11:32 ` Vlastimil Babka
2022-06-20 23:07 ` [PATCH Part2 v6 22/49] KVM: SVM: Add initial SEV-SNP support Ashish Kalra
2022-06-20 23:07 ` [PATCH Part2 v6 23/49] KVM: SVM: Add KVM_SNP_INIT command Ashish Kalra
2022-06-20 23:07 ` [PATCH Part2 v6 24/49] KVM: SVM: Add KVM_SEV_SNP_LAUNCH_START command Ashish Kalra
2022-06-24 14:42 ` Peter Gonda
2022-06-24 18:17 ` Kalra, Ashish
2022-08-02 13:19 ` Jarkko Sakkinen
2022-06-20 23:07 ` [PATCH Part2 v6 25/49] KVM: SVM: Disallow registering memory range from HugeTLB for SNP guest Ashish Kalra
2022-08-04 13:37 ` Vlastimil Babka
2022-06-20 23:08 ` [PATCH Part2 v6 26/49] KVM: SVM: Add KVM_SEV_SNP_LAUNCH_UPDATE command Ashish Kalra
2022-06-24 14:33 ` Peter Gonda
2022-06-29 18:14 ` Kalra, Ashish
2022-08-02 12:50 ` Jarkko Sakkinen
2022-08-09 13:55 ` Sabin Rapan
2022-08-15 23:04 ` Kalra, Ashish
2022-06-20 23:08 ` [PATCH Part2 v6 27/49] KVM: SVM: Mark the private vma unmerable for SEV-SNP guests Ashish Kalra
2022-06-22 10:29 ` Dr. David Alan Gilbert
2022-08-04 10:56 ` Vlastimil Babka
2022-06-20 23:08 ` [PATCH Part2 v6 28/49] KVM: SVM: Add KVM_SEV_SNP_LAUNCH_FINISH command Ashish Kalra
2022-07-11 14:05 ` Peter Gonda
2022-07-11 22:41 ` Kalra, Ashish
2022-07-12 14:45 ` Peter Gonda
2022-07-12 15:22 ` Kalra, Ashish
2022-07-12 16:04 ` Peter Gonda
2022-07-12 17:40 ` Tom Lendacky
2022-07-13 14:59 ` Peter Gonda
2022-08-02 13:28 ` Jarkko Sakkinen
2022-09-08 14:55 ` [[PATCH for v6]] KVM: SEV: fix snp_launch_finish Harald Hoyer
2022-09-08 15:11 ` Sean Christopherson
2022-09-08 20:34 ` Jarkko Sakkinen
2022-09-09 8:04 ` [PATCH Part2 v6 28/49] KVM: SVM: Add KVM_SEV_SNP_LAUNCH_FINISH command Harald Hoyer
2022-06-20 23:08 ` [PATCH Part2 v6 29/49] KVM: X86: Keep the NPT and RMP page level in sync Ashish Kalra
2022-07-12 16:44 ` Jarkko Sakkinen
2022-06-20 23:09 ` [PATCH Part2 v6 30/49] KVM: x86/mmu: Introduce kvm_mmu_map_tdp_page() for use by TDX and SNP Ashish Kalra
2022-06-20 23:09 ` [PATCH Part2 v6 31/49] KVM: x86: Introduce kvm_mmu_get_tdp_walk() for SEV-SNP use Ashish Kalra
2022-09-07 17:45 ` Alper Gun
2022-06-20 23:09 ` [PATCH Part2 v6 32/49] KVM: x86: Define RMP page fault error bits for #NPF Ashish Kalra
2022-06-20 23:10 ` [PATCH Part2 v6 33/49] KVM: x86: Update page-fault trace to log full 64-bit error code Ashish Kalra
2022-07-25 11:19 ` Vlastimil Babka
2022-06-20 23:10 ` [PATCH Part2 v6 34/49] KVM: SVM: Do not use long-lived GHCB map while setting scratch area Ashish Kalra
2022-06-20 23:10 ` [PATCH Part2 v6 35/49] KVM: SVM: Remove the long-lived GHCB host map Ashish Kalra
2022-06-24 15:12 ` Peter Gonda
2022-06-24 20:14 ` Kalra, Ashish
2022-07-07 20:06 ` Peter Gonda
2022-07-07 20:31 ` Kalra, Ashish
2022-07-08 15:54 ` Peter Gonda
2022-07-08 15:59 ` Kalra, Ashish
2022-06-20 23:11 ` [PATCH Part2 v6 36/49] KVM: SVM: Add support to handle GHCB GPA register VMGEXIT Ashish Kalra
2022-06-28 13:28 ` Dr. David Alan Gilbert
2022-06-20 23:11 ` [PATCH Part2 v6 37/49] KVM: SVM: Add support to handle MSR based Page State Change VMGEXIT Ashish Kalra
2022-08-19 16:54 ` Peter Gonda
2022-09-19 17:53 ` Alper Gun
2022-09-19 21:38 ` Tom Lendacky
2022-09-19 22:02 ` Alper Gun
2022-09-19 22:18 ` Tom Lendacky
2022-09-19 23:46 ` Ashish Kalra
2022-09-26 15:19 ` Peter Gonda
2022-10-12 20:15 ` Kalra, Ashish
2022-10-12 22:57 ` Michael Roth
2022-06-20 23:11 ` [PATCH Part2 v6 38/49] KVM: SVM: Add support to handle " Ashish Kalra
2022-06-20 23:12 ` [PATCH Part2 v6 39/49] KVM: SVM: Introduce ops for the post gfn map and unmap Ashish Kalra
2022-08-18 3:47 ` Alper Gun
2022-11-17 20:18 ` Peter Gonda
2022-11-17 20:28 ` Kalra, Ashish
2022-11-17 21:36 ` Kalra, Ashish
2022-06-20 23:12 ` [PATCH Part2 v6 40/49] KVM: x86: Export the kvm_zap_gfn_range() for the SNP use Ashish Kalra
2022-06-20 23:13 ` [PATCH Part2 v6 41/49] KVM: SVM: Add support to handle the RMP nested page fault Ashish Kalra
2022-07-12 12:33 ` Jarkko Sakkinen
2022-07-12 12:45 ` Jarkko Sakkinen
2022-07-12 12:48 ` Jarkko Sakkinen
2022-07-12 15:32 ` Kalra, Ashish
2022-10-10 22:03 ` Alper Gun
2022-10-11 2:32 ` Kalra, Ashish
2022-10-12 22:53 ` Alper Gun
2022-10-13 15:00 ` Kalra, Ashish
2022-06-20 23:13 ` [PATCH Part2 v6 42/49] KVM: SVM: Provide support for SNP_GUEST_REQUEST NAE event Ashish Kalra
2022-06-24 16:25 ` Peter Gonda
2022-06-27 19:03 ` Kalra, Ashish
2022-06-29 19:15 ` Kalra, Ashish
2022-07-08 15:28 ` Peter Gonda
2022-10-21 19:06 ` Tom Lendacky
2022-10-21 21:12 ` Kalra, Ashish
2022-10-21 21:30 ` Tom Lendacky
2022-10-21 21:56 ` Kalra, Ashish
2022-06-20 23:13 ` [PATCH Part2 v6 43/49] KVM: SVM: Use a VMSA physical address variable for populating VMCB Ashish Kalra
2022-06-20 23:14 ` [PATCH Part2 v6 44/49] KVM: SVM: Support SEV-SNP AP Creation NAE event Ashish Kalra
2022-06-20 23:14 ` [PATCH Part2 v6 45/49] KVM: SVM: Add module parameter to enable the SEV-SNP Ashish Kalra
2022-06-20 23:14 ` [PATCH Part2 v6 46/49] ccp: add support to decrypt the page Ashish Kalra
2022-06-20 23:14 ` [PATCH Part2 v6 47/49] *fix for stale per-cpu pointer due to cond_resched during ghcb mapping Ashish Kalra
2022-06-24 16:35 ` Peter Gonda
2022-06-24 16:44 ` Kalra, Ashish
2022-06-20 23:15 ` [PATCH Part2 v6 48/49] *debug: warn and retry failed rmpupdates Ashish Kalra
2022-06-20 23:15 ` [PATCH Part2 v6 49/49] KVM: SVM: Sync the GHCB scratch buffer using already mapped ghcb Ashish Kalra
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