From: Michael Roth <michael.roth@amd.com>
To: <kvm@vger.kernel.org>
Cc: <linux-coco@lists.linux.dev>, <linux-mm@kvack.org>,
<linux-crypto@vger.kernel.org>, <x86@kernel.org>,
<linux-kernel@vger.kernel.org>, <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>,
<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>, <jarkko@kernel.org>,
<ashish.kalra@amd.com>, <nikunj.dadhania@amd.com>,
<pankaj.gupta@amd.com>, <liam.merwick@oracle.com>,
<zhi.a.wang@intel.com>, Brijesh Singh <brijesh.singh@amd.com>
Subject: [PATCH v10 17/50] crypto: ccp: Handle the legacy TMR allocation when SNP is enabled
Date: Mon, 16 Oct 2023 08:27:46 -0500 [thread overview]
Message-ID: <20231016132819.1002933-18-michael.roth@amd.com> (raw)
In-Reply-To: <20231016132819.1002933-1-michael.roth@amd.com>
From: Brijesh Singh <brijesh.singh@amd.com>
The behavior and requirement for the SEV-legacy command is altered when
the SNP firmware is in the INIT state. See SEV-SNP firmware specification
for more details.
Allocate the Trusted Memory Region (TMR) as a 2mb sized/aligned region
when SNP is enabled to satisfy new requirements for the SNP. Continue
allocating a 1mb region for !SNP configuration.
While at it, provide API that can be used by others to allocate a page
that can be used by the firmware. The immediate user for this API will
be the KVM driver. The KVM driver to need to allocate a firmware context
page during the guest creation. The context page need to be updated
by the firmware. See the SEV-SNP specification for further details.
Co-developed-by: Ashish Kalra <ashish.kalra@amd.com>
Signed-off-by: Ashish Kalra <ashish.kalra@amd.com>
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
[mdr: use struct sev_data_snp_page_reclaim instead of passing paddr
directly to SEV_CMD_SNP_PAGE_RECLAIM]
Signed-off-by: Michael Roth <michael.roth@amd.com>
---
drivers/crypto/ccp/sev-dev.c | 151 ++++++++++++++++++++++++++++++++---
include/linux/psp-sev.h | 9 +++
2 files changed, 151 insertions(+), 9 deletions(-)
diff --git a/drivers/crypto/ccp/sev-dev.c b/drivers/crypto/ccp/sev-dev.c
index 613b25f81498..ea21307a2b34 100644
--- a/drivers/crypto/ccp/sev-dev.c
+++ b/drivers/crypto/ccp/sev-dev.c
@@ -30,6 +30,7 @@
#include <asm/smp.h>
#include <asm/cacheflush.h>
#include <asm/e820/types.h>
+#include <asm/sev-host.h>
#include "psp-dev.h"
#include "sev-dev.h"
@@ -93,6 +94,13 @@ static void *sev_init_ex_buffer;
struct sev_data_range_list *snp_range_list;
static int __sev_snp_init_locked(int *error);
+/* When SEV-SNP is enabled the TMR needs to be 2MB aligned and 2MB size. */
+#define SEV_SNP_ES_TMR_SIZE (2 * 1024 * 1024)
+
+static size_t sev_es_tmr_size = SEV_ES_TMR_SIZE;
+
+static int __sev_do_cmd_locked(int cmd, void *data, int *psp_ret);
+
static inline bool sev_version_greater_or_equal(u8 maj, u8 min)
{
struct sev_device *sev = psp_master->sev_data;
@@ -193,11 +201,131 @@ static int sev_cmd_buffer_len(int cmd)
return 0;
}
+static int snp_reclaim_pages(unsigned long paddr, unsigned int npages, bool locked)
+{
+ /* Cbit maybe set in the paddr */
+ unsigned long pfn = __sme_clr(paddr) >> PAGE_SHIFT;
+ int ret, err, i, n = 0;
+
+ for (i = 0; i < npages; i++, pfn++, n++) {
+ struct sev_data_snp_page_reclaim data = {0};
+
+ data.paddr = pfn << PAGE_SHIFT;
+
+ if (locked)
+ ret = __sev_do_cmd_locked(SEV_CMD_SNP_PAGE_RECLAIM, &data, &err);
+ else
+ ret = sev_do_cmd(SEV_CMD_SNP_PAGE_RECLAIM, &data, &err);
+
+ if (ret)
+ goto cleanup;
+
+ ret = rmp_make_shared(pfn, PG_LEVEL_4K);
+ if (ret)
+ goto cleanup;
+ }
+
+ return 0;
+
+cleanup:
+ /*
+ * If failed to reclaim the page then page is no longer safe to
+ * be release back to the system, leak it.
+ */
+ snp_leak_pages(pfn, npages - n);
+ return ret;
+}
+
+static int rmp_mark_pages_firmware(unsigned long paddr, unsigned int npages, bool locked)
+{
+ /* Cbit maybe set in the paddr */
+ unsigned long pfn = __sme_clr(paddr) >> PAGE_SHIFT;
+ int rc, n = 0, i;
+
+ for (i = 0; i < npages; i++, n++, pfn++) {
+ rc = rmp_make_private(pfn, 0, PG_LEVEL_4K, 0, true);
+ if (rc)
+ goto cleanup;
+ }
+
+ return 0;
+
+cleanup:
+ /*
+ * Try unrolling the firmware state changes by
+ * reclaiming the pages which were already changed to the
+ * firmware state.
+ */
+ snp_reclaim_pages(paddr, n, locked);
+
+ return rc;
+}
+
+static struct page *__snp_alloc_firmware_pages(gfp_t gfp_mask, int order, bool locked)
+{
+ unsigned long npages = 1ul << order, paddr;
+ struct sev_device *sev;
+ struct page *page;
+
+ if (!psp_master || !psp_master->sev_data)
+ return NULL;
+
+ page = alloc_pages(gfp_mask, order);
+ if (!page)
+ return NULL;
+
+ /* If SEV-SNP is initialized then add the page in RMP table. */
+ sev = psp_master->sev_data;
+ if (!sev->snp_initialized)
+ return page;
+
+ paddr = __pa((unsigned long)page_address(page));
+ if (rmp_mark_pages_firmware(paddr, npages, locked))
+ return NULL;
+
+ return page;
+}
+
+void *snp_alloc_firmware_page(gfp_t gfp_mask)
+{
+ struct page *page;
+
+ page = __snp_alloc_firmware_pages(gfp_mask, 0, false);
+
+ return page ? page_address(page) : NULL;
+}
+EXPORT_SYMBOL_GPL(snp_alloc_firmware_page);
+
+static void __snp_free_firmware_pages(struct page *page, int order, bool locked)
+{
+ struct sev_device *sev = psp_master->sev_data;
+ unsigned long paddr, npages = 1ul << order;
+
+ if (!page)
+ return;
+
+ paddr = __pa((unsigned long)page_address(page));
+ if (sev->snp_initialized &&
+ snp_reclaim_pages(paddr, npages, locked))
+ return;
+
+ __free_pages(page, order);
+}
+
+void snp_free_firmware_page(void *addr)
+{
+ if (!addr)
+ return;
+
+ __snp_free_firmware_pages(virt_to_page(addr), 0, false);
+}
+EXPORT_SYMBOL_GPL(snp_free_firmware_page);
+
static void *sev_fw_alloc(unsigned long len)
{
struct page *page;
- page = alloc_pages(GFP_KERNEL, get_order(len));
+ page = __snp_alloc_firmware_pages(GFP_KERNEL, get_order(len), false);
if (!page)
return NULL;
@@ -443,7 +571,7 @@ static int __sev_init_locked(int *error)
data.tmr_address = __pa(sev_es_tmr);
data.flags |= SEV_INIT_FLAGS_SEV_ES;
- data.tmr_len = SEV_ES_TMR_SIZE;
+ data.tmr_len = sev_es_tmr_size;
}
return __sev_do_cmd_locked(SEV_CMD_INIT, &data, error);
@@ -466,7 +594,7 @@ static int __sev_init_ex_locked(int *error)
data.tmr_address = __pa(sev_es_tmr);
data.flags |= SEV_INIT_FLAGS_SEV_ES;
- data.tmr_len = SEV_ES_TMR_SIZE;
+ data.tmr_len = sev_es_tmr_size;
}
return __sev_do_cmd_locked(SEV_CMD_INIT_EX, &data, error);
@@ -513,14 +641,16 @@ static int ___sev_platform_init_locked(int *error, bool probe)
if (!sev_es_tmr) {
/* Obtain the TMR memory area for SEV-ES use */
- sev_es_tmr = sev_fw_alloc(SEV_ES_TMR_SIZE);
- if (sev_es_tmr)
+ sev_es_tmr = sev_fw_alloc(sev_es_tmr_size);
+ if (sev_es_tmr) {
/* Must flush the cache before giving it to the firmware */
- clflush_cache_range(sev_es_tmr, SEV_ES_TMR_SIZE);
- else
+ if (!sev->snp_initialized)
+ clflush_cache_range(sev_es_tmr, sev_es_tmr_size);
+ } else {
dev_warn(sev->dev,
"SEV: TMR allocation failed, SEV-ES support unavailable\n");
}
+ }
if (sev_init_ex_buffer) {
rc = sev_read_init_ex_file();
@@ -1030,6 +1160,8 @@ static int __sev_snp_init_locked(int *error)
sev->snp_initialized = true;
dev_dbg(sev->dev, "SEV-SNP firmware initialized\n");
+ sev_es_tmr_size = SEV_SNP_ES_TMR_SIZE;
+
return rc;
}
@@ -1536,8 +1668,9 @@ static void sev_firmware_shutdown(struct sev_device *sev)
/* The TMR area was encrypted, flush it from the cache */
wbinvd_on_all_cpus();
- free_pages((unsigned long)sev_es_tmr,
- get_order(SEV_ES_TMR_SIZE));
+ __snp_free_firmware_pages(virt_to_page(sev_es_tmr),
+ get_order(sev_es_tmr_size),
+ false);
sev_es_tmr = NULL;
}
diff --git a/include/linux/psp-sev.h b/include/linux/psp-sev.h
index 61bb5849ebf2..9342cee1a1e6 100644
--- a/include/linux/psp-sev.h
+++ b/include/linux/psp-sev.h
@@ -898,6 +898,8 @@ int sev_guest_decommission(struct sev_data_decommission *data, int *error);
int sev_do_cmd(int cmd, void *data, int *psp_ret);
void *psp_copy_user_blob(u64 uaddr, u32 len);
+void *snp_alloc_firmware_page(gfp_t mask);
+void snp_free_firmware_page(void *addr);
#else /* !CONFIG_CRYPTO_DEV_SP_PSP */
@@ -925,6 +927,13 @@ sev_issue_cmd_external_user(struct file *filep, unsigned int id, void *data, int
static inline void *psp_copy_user_blob(u64 __user uaddr, u32 len) { return ERR_PTR(-EINVAL); }
+static inline void *snp_alloc_firmware_page(gfp_t mask)
+{
+ return NULL;
+}
+
+static inline void snp_free_firmware_page(void *addr) { }
+
#endif /* CONFIG_CRYPTO_DEV_SP_PSP */
#endif /* __PSP_SEV_H__ */
--
2.25.1
next prev parent reply other threads:[~2023-10-16 13:33 UTC|newest]
Thread overview: 158+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-16 13:27 [PATCH v10 00/50] Add AMD Secure Nested Paging (SEV-SNP) Hypervisor Support Michael Roth
2023-10-16 13:27 ` [PATCH v10 01/50] KVM: SVM: INTERCEPT_RDTSCP is never intercepted anyway Michael Roth
2023-10-16 15:12 ` Greg KH
2023-10-16 15:14 ` Paolo Bonzini
2023-10-16 15:21 ` Michael Roth
2023-10-16 13:27 ` [PATCH v10 02/50] KVM: SVM: Fix TSC_AUX virtualization setup Michael Roth
2023-10-16 13:27 ` [PATCH v10 03/50] KVM: SEV: Do not intercept accesses to MSR_IA32_XSS for SEV-ES guests Michael Roth
2023-12-13 12:50 ` Paolo Bonzini
2023-12-13 17:30 ` Sean Christopherson
2023-12-13 17:40 ` Paolo Bonzini
2023-10-16 13:27 ` [PATCH v10 04/50] x86/cpufeatures: Add SEV-SNP CPU feature Michael Roth
2023-12-13 12:51 ` Paolo Bonzini
2023-12-13 13:13 ` Borislav Petkov
2023-12-13 13:31 ` Paolo Bonzini
2023-12-13 13:36 ` Borislav Petkov
2023-12-13 13:40 ` Paolo Bonzini
2023-12-13 13:49 ` Borislav Petkov
2023-12-13 14:18 ` Paolo Bonzini
2023-12-13 15:41 ` Borislav Petkov
2023-12-13 17:35 ` Paolo Bonzini
2023-12-13 18:53 ` Borislav Petkov
2023-10-16 13:27 ` [PATCH v10 05/50] x86/speculation: Do not enable Automatic IBRS if SEV SNP is enabled Michael Roth
2023-10-25 17:33 ` Borislav Petkov
2023-10-27 21:50 ` Dave Hansen
2023-12-13 12:52 ` Paolo Bonzini
2023-10-16 13:27 ` [PATCH v10 06/50] x86/sev: Add the host SEV-SNP initialization support Michael Roth
2023-10-25 18:19 ` Tom Lendacky
2023-11-07 16:31 ` Borislav Petkov
2023-11-07 18:32 ` Tom Lendacky
2023-11-07 19:13 ` Borislav Petkov
2023-11-08 8:21 ` Jeremi Piotrowski
2023-11-08 15:19 ` Tom Lendacky
2023-11-07 19:00 ` Kalra, Ashish
2023-11-07 19:19 ` Borislav Petkov
2023-11-07 20:27 ` Borislav Petkov
2023-11-07 21:21 ` Kalra, Ashish
2023-11-07 21:27 ` Borislav Petkov
2023-11-07 22:08 ` Borislav Petkov
2023-11-07 22:33 ` Kalra, Ashish
2023-11-08 6:14 ` Borislav Petkov
2023-11-08 9:11 ` Jeremi Piotrowski
2023-11-08 19:53 ` Kalra, Ashish
2023-12-08 17:09 ` Jeremi Piotrowski
2023-12-08 23:21 ` Kalra, Ashish
2023-12-20 7:07 ` Michael Roth
2023-10-16 13:27 ` [PATCH v10 07/50] x86/sev: Add RMP entry lookup helpers Michael Roth
2023-11-14 14:24 ` Borislav Petkov
2023-12-19 3:31 ` Michael Roth
2024-01-09 22:07 ` Borislav Petkov
2023-10-16 13:27 ` [PATCH v10 08/50] x86/fault: Add helper for dumping RMP entries Michael Roth
2023-11-15 16:08 ` Borislav Petkov
2023-12-19 6:08 ` Michael Roth
2023-10-16 13:27 ` [PATCH v10 09/50] x86/traps: Define RMP violation #PF error code Michael Roth
2023-10-16 14:14 ` Dave Hansen
2023-10-16 14:55 ` Michael Roth
2023-10-16 13:27 ` [PATCH v10 10/50] x86/fault: Report RMP page faults for kernel addresses Michael Roth
2023-11-21 15:23 ` Borislav Petkov
2023-10-16 13:27 ` [PATCH v10 11/50] x86/sev: Add helper functions for RMPUPDATE and PSMASH instruction Michael Roth
2023-11-21 16:21 ` Borislav Petkov
2023-12-19 16:20 ` Michael Roth
2023-10-16 13:27 ` [PATCH v10 12/50] x86/sev: Invalidate pages from the direct map when adding them to the RMP table Michael Roth
2023-11-24 14:20 ` Borislav Petkov
2023-10-16 13:27 ` [PATCH v10 13/50] crypto: ccp: Define the SEV-SNP commands Michael Roth
2023-11-24 14:36 ` Borislav Petkov
2023-10-16 13:27 ` [PATCH v10 14/50] crypto: ccp: Add support to initialize the AMD-SP for SEV-SNP Michael Roth
2023-11-27 9:59 ` Borislav Petkov
2023-11-30 2:13 ` Kalra, Ashish
2023-12-06 17:08 ` Borislav Petkov
2023-12-06 20:35 ` Kalra, Ashish
2023-12-09 16:20 ` Borislav Petkov
2023-12-11 21:11 ` Kalra, Ashish
2023-12-12 6:52 ` Borislav Petkov
2023-10-16 13:27 ` [PATCH v10 15/50] crypto: ccp: Provide API to issue SEV and SNP commands Michael Roth
2023-12-06 20:21 ` Borislav Petkov
2023-10-16 13:27 ` [PATCH v10 16/50] x86/sev: Introduce snp leaked pages list Michael Roth
2023-12-06 20:42 ` Borislav Petkov
2023-12-08 20:54 ` Kalra, Ashish
2023-12-07 16:20 ` Vlastimil Babka
2023-12-08 22:10 ` Kalra, Ashish
2023-12-11 13:08 ` Vlastimil Babka
2023-12-12 23:26 ` Kalra, Ashish
2023-10-16 13:27 ` Michael Roth [this message]
2023-12-08 13:05 ` [PATCH v10 17/50] crypto: ccp: Handle the legacy TMR allocation when SNP is enabled Borislav Petkov
2023-12-19 23:46 ` Michael Roth
2023-10-16 13:27 ` [PATCH v10 18/50] crypto: ccp: Handle the legacy SEV command " Michael Roth
2023-12-09 15:36 ` Borislav Petkov
2023-12-29 21:38 ` Michael Roth
2023-10-16 13:27 ` [PATCH v10 19/50] crypto: ccp: Add the SNP_PLATFORM_STATUS command Michael Roth
2023-12-12 16:45 ` Borislav Petkov
2023-10-16 13:27 ` [PATCH v10 20/50] KVM: SEV: Select CONFIG_KVM_SW_PROTECTED_VM when CONFIG_KVM_AMD_SEV=y Michael Roth
2023-12-13 12:54 ` Paolo Bonzini
2023-12-29 21:41 ` Michael Roth
2023-12-18 10:13 ` Borislav Petkov
2023-12-29 21:40 ` Michael Roth
2023-10-16 13:27 ` [PATCH v10 21/50] KVM: SEV: Add support to handle AP reset MSR protocol Michael Roth
2023-12-12 17:02 ` Borislav Petkov
2023-10-16 13:27 ` [PATCH v10 22/50] KVM: SEV: Add GHCB handling for Hypervisor Feature Support requests Michael Roth
2023-12-18 10:23 ` Borislav Petkov
2023-10-16 13:27 ` [PATCH v10 23/50] KVM: SEV: Make AVIC backing, VMSA and VMCB memory allocation SNP safe Michael Roth
2023-12-11 13:24 ` Vlastimil Babka
2023-12-12 0:00 ` Kalra, Ashish
2023-12-13 13:31 ` Paolo Bonzini
2023-12-13 18:45 ` Paolo Bonzini
2023-12-18 14:57 ` Borislav Petkov
2023-10-16 13:27 ` [PATCH v10 24/50] KVM: SEV: Add initial SEV-SNP support Michael Roth
2023-12-18 17:43 ` Borislav Petkov
2023-10-16 13:27 ` [PATCH v10 25/50] KVM: SEV: Add KVM_SNP_INIT command Michael Roth
2023-10-16 13:27 ` [PATCH v10 26/50] KVM: SEV: Add KVM_SEV_SNP_LAUNCH_START command Michael Roth
2023-10-16 13:27 ` [PATCH v10 27/50] KVM: Add HVA range operator Michael Roth
2023-10-16 13:27 ` [PATCH v10 28/50] KVM: SEV: Add KVM_SEV_SNP_LAUNCH_UPDATE command Michael Roth
2023-10-16 13:27 ` [PATCH v10 29/50] KVM: SEV: Add KVM_SEV_SNP_LAUNCH_FINISH command Michael Roth
2023-10-16 13:27 ` [PATCH v10 30/50] KVM: SEV: Add support to handle GHCB GPA register VMGEXIT Michael Roth
2023-10-16 13:28 ` [PATCH v10 31/50] KVM: SEV: Add KVM_EXIT_VMGEXIT Michael Roth
2023-10-16 13:28 ` [PATCH v10 32/50] KVM: SEV: Add support to handle MSR based Page State Change VMGEXIT Michael Roth
2023-10-16 13:28 ` [PATCH v10 33/50] KVM: SEV: Add support to handle " Michael Roth
2023-10-16 13:28 ` [PATCH v10 34/50] KVM: x86: Export the kvm_zap_gfn_range() for the SNP use Michael Roth
2023-10-16 13:28 ` [PATCH v10 35/50] KVM: SEV: Add support to handle RMP nested page faults Michael Roth
2023-10-16 13:28 ` [PATCH v10 36/50] KVM: SEV: Use a VMSA physical address variable for populating VMCB Michael Roth
2023-10-16 13:28 ` [PATCH v10 37/50] KVM: SEV: Support SEV-SNP AP Creation NAE event Michael Roth
2023-10-16 13:28 ` [PATCH v10 38/50] KVM: SEV: Add support for GHCB-based termination requests Michael Roth
2023-10-19 12:20 ` Liam Merwick
2023-10-16 13:28 ` [PATCH v10 39/50] KVM: SEV: Implement gmem hook for initializing private pages Michael Roth
2023-10-16 13:28 ` [PATCH v10 40/50] KVM: SEV: Implement gmem hook for invalidating " Michael Roth
2023-10-16 13:28 ` [PATCH v10 41/50] KVM: x86: Add gmem hook for determining max NPT mapping level Michael Roth
2023-10-16 13:28 ` [PATCH v10 42/50] KVM: SEV: Avoid WBINVD for HVA-based MMU notifications for SNP Michael Roth
2023-10-16 13:28 ` [PATCH v10 43/50] KVM: SVM: Add module parameter to enable the SEV-SNP Michael Roth
2023-10-16 13:28 ` [PATCH v10 44/50] iommu/amd: Add IOMMU_SNP_SHUTDOWN support Michael Roth
2023-10-16 13:28 ` [PATCH v10 45/50] iommu/amd: Report all cases inhibiting SNP enablement Michael Roth
2023-10-16 13:28 ` [PATCH v10 46/50] crypto: ccp: Add the SNP_{SET,GET}_EXT_CONFIG command Michael Roth
2023-10-16 23:11 ` Dionna Amalie Glaze
2023-10-16 13:28 ` [PATCH v10 47/50] x86/sev: Add KVM commands for per-instance certs Michael Roth
2023-10-16 13:28 ` [PATCH v10 48/50] KVM: SEV: Provide support for SNP_GUEST_REQUEST NAE event Michael Roth
2023-10-16 23:18 ` Dionna Amalie Glaze
2023-10-17 16:27 ` Sean Christopherson
2023-10-18 2:28 ` Alexey Kardashevskiy
2023-10-18 13:48 ` Sean Christopherson
2023-10-18 20:27 ` Kalra, Ashish
2023-10-18 20:38 ` Sean Christopherson
2023-10-18 21:27 ` Kalra, Ashish
2023-10-18 21:43 ` Sean Christopherson
2023-10-19 2:48 ` Alexey Kardashevskiy
2023-10-19 14:57 ` Sean Christopherson
2023-10-19 23:55 ` Alexey Kardashevskiy
2023-10-20 0:13 ` Sean Christopherson
2023-10-20 0:43 ` Alexey Kardashevskiy
2023-10-20 15:13 ` Sean Christopherson
2023-10-20 18:37 ` Tom Lendacky
2023-11-10 22:07 ` Michael Roth
2023-11-10 22:47 ` Sean Christopherson
2023-11-16 5:31 ` Dionna Amalie Glaze
2023-12-05 0:30 ` Dan Williams
2023-12-05 0:48 ` Dionna Amalie Glaze
2023-12-05 20:06 ` Dan Williams
2023-12-05 22:04 ` Dionna Amalie Glaze
2023-12-05 23:11 ` Dan Williams
2023-12-06 0:43 ` Dionna Amalie Glaze
2023-10-16 13:28 ` [PATCH v10 49/50] crypto: ccp: Add debug support for decrypting pages Michael Roth
2023-10-16 13:28 ` [PATCH v10 50/50] crypto: ccp: Add panic notifier for SEV/SNP firmware shutdown on kdump Michael Roth
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