From: "Lendacky, Thomas" <thomas.lendacky@amd.com>
To: devel@edk2.groups.io
Cc: Jordan Justen <jordan.l.justen@intel.com>,
Laszlo Ersek <lersek@redhat.com>,
Ard Biesheuvel <ard.biesheuvel@linaro.org>,
Michael D Kinney <michael.d.kinney@intel.com>,
Liming Gao <liming.gao@intel.com>,
Eric Dong <eric.dong@intel.com>, Ray Ni <ray.ni@intel.com>,
Brijesh Singh <brijesh.singh@amd.com>
Subject: [PATCH v8 38/46] OvmfPkg/Sec: Enable cache early to speed up booting
Date: Tue, 19 May 2020 16:51:06 -0500 [thread overview]
Message-ID: <3089d2e23db33e4a33b1e91469c2163e16569afd.1589925074.git.thomas.lendacky@amd.com> (raw)
In-Reply-To: <cover.1589925074.git.thomas.lendacky@amd.com>
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=2198
Currently, the OVMF code relies on the hypervisor to enable the cache
support on the processor in order to improve the boot speed. However,
with SEV-ES, the hypervisor is not allowed to change the CR0 register
to enable caching.
Update the OVMF Sec support to enable caching in order to improve the
boot speed when running as an SEV-ES guest.
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
---
OvmfPkg/Sec/SecMain.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/OvmfPkg/Sec/SecMain.c b/OvmfPkg/Sec/SecMain.c
index c2a35463dce4..271a06348ed8 100644
--- a/OvmfPkg/Sec/SecMain.c
+++ b/OvmfPkg/Sec/SecMain.c
@@ -905,6 +905,13 @@ SecCoreStartupWithStack (
// For non SEV-ES guests, just load the IDTR.
//
AsmWriteIdtr (&IdtDescriptor);
+ } else {
+ //
+ // Under SEV-ES, the hypervisor can't modify CR0 and so can't enable
+ // caching in order to speed up the boot. Enable caching early for
+ // an SEV-ES guest.
+ //
+ AsmEnableCache ();
}
DEBUG ((DEBUG_INFO,
--
2.17.1
next prev parent reply other threads:[~2020-05-19 21:52 UTC|newest]
Thread overview: 100+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-19 21:50 [PATCH v8 00/46] SEV-ES guest support Lendacky, Thomas
2020-05-19 21:50 ` [PATCH v8 01/46] MdeModulePkg: Create PCDs to be used in support of SEV-ES Lendacky, Thomas
2020-05-19 21:50 ` [PATCH v8 02/46] UefiCpuPkg: Create PCD " Lendacky, Thomas
2020-05-19 21:50 ` [PATCH v8 03/46] MdePkg: Add the MSR definition for the GHCB register Lendacky, Thomas
2020-05-19 21:50 ` [PATCH v8 04/46] MdePkg: Add a structure definition for the GHCB Lendacky, Thomas
2020-05-19 21:50 ` [PATCH v8 05/46] MdeModulePkg/DxeIplPeim: Support GHCB pages when creating page tables Lendacky, Thomas
2020-05-19 21:50 ` [PATCH v8 06/46] MdePkg/BaseLib: Add support for the XGETBV instruction Lendacky, Thomas
2020-05-19 21:50 ` [PATCH v8 07/46] MdePkg/BaseLib: Add support for the VMGEXIT instruction Lendacky, Thomas
2020-05-19 21:50 ` [PATCH v8 08/46] UefiCpuPkg: Implement library support for VMGEXIT Lendacky, Thomas
2020-05-19 21:50 ` [PATCH v8 09/46] OvmfPkg: Prepare OvmfPkg to use the VmgExitLib library Lendacky, Thomas
2020-05-21 16:42 ` [edk2-devel] " Laszlo Ersek
2020-05-19 21:50 ` [PATCH v8 10/46] UefiPayloadPkg: Prepare UefiPayloadPkg " Lendacky, Thomas
2020-05-19 21:50 ` [PATCH v8 11/46] UefiCpuPkg/CpuExceptionHandler: Add base support for the #VC exception Lendacky, Thomas
2020-05-19 21:50 ` [PATCH v8 12/46] OvmfPkg/VmgExitLib: Implement library support for VmgExitLib in OVMF Lendacky, Thomas
2020-05-21 16:52 ` [edk2-devel] " Laszlo Ersek
2020-05-21 17:08 ` Lendacky, Thomas
2020-05-19 21:50 ` [PATCH v8 13/46] OvmfPkg/VmgExitLib: Add support for IOIO_PROT NAE events Lendacky, Thomas
2020-05-21 17:25 ` [edk2-devel] " Laszlo Ersek
2020-05-22 10:05 ` Laszlo Ersek
2020-05-22 13:41 ` Lendacky, Thomas
2020-05-22 13:40 ` Lendacky, Thomas
2020-05-19 21:50 ` [PATCH v8 14/46] OvmfPkg/VmgExitLib: Support string IO " Lendacky, Thomas
2020-05-22 10:14 ` [edk2-devel] " Laszlo Ersek
2020-05-19 21:50 ` [PATCH v8 15/46] OvmfPkg/VmgExitLib: Add support for CPUID " Lendacky, Thomas
2020-05-22 10:27 ` [edk2-devel] " Laszlo Ersek
2020-05-22 19:02 ` Lendacky, Thomas
2020-05-19 21:50 ` [PATCH v8 16/46] OvmfPkg/VmgExitLib: Add support for MSR_PROT " Lendacky, Thomas
2020-05-22 10:31 ` [edk2-devel] " Laszlo Ersek
2020-05-22 19:06 ` Lendacky, Thomas
2020-05-19 21:50 ` [PATCH v8 17/46] OvmfPkg/VmgExitLib: Add support for NPF NAE events (MMIO) Lendacky, Thomas
2020-05-22 14:14 ` [edk2-devel] " Laszlo Ersek
2020-05-22 14:31 ` Laszlo Ersek
2020-05-22 20:41 ` Lendacky, Thomas
2020-05-19 21:50 ` [PATCH v8 18/46] OvmfPkg/VmgExitLib: Add support for WBINVD NAE events Lendacky, Thomas
2020-05-22 14:19 ` [edk2-devel] " Laszlo Ersek
2020-05-22 20:51 ` Lendacky, Thomas
2020-05-19 21:50 ` [PATCH v8 19/46] OvmfPkg/VmgExitLib: Add support for RDTSC " Lendacky, Thomas
2020-05-22 14:42 ` [edk2-devel] " Laszlo Ersek
2020-05-19 21:50 ` [PATCH v8 20/46] OvmfPkg/VmgExitLib: Add support for RDPMC " Lendacky, Thomas
2020-05-22 14:43 ` [edk2-devel] " Laszlo Ersek
2020-05-19 21:50 ` [PATCH v8 21/46] OvmfPkg/VmgExitLib: Add support for INVD " Lendacky, Thomas
2020-05-22 14:46 ` [edk2-devel] " Laszlo Ersek
2020-05-19 21:50 ` [PATCH v8 22/46] OvmfPkg/VmgExitLib: Add support for VMMCALL " Lendacky, Thomas
2020-05-22 14:48 ` [edk2-devel] " Laszlo Ersek
2020-05-22 14:50 ` Laszlo Ersek
2020-05-22 21:18 ` Lendacky, Thomas
2020-05-19 21:50 ` [PATCH v8 23/46] OvmfPkg/VmgExitLib: Add support for RDTSCP " Lendacky, Thomas
2020-05-22 14:52 ` [edk2-devel] " Laszlo Ersek
2020-05-19 21:50 ` [PATCH v8 24/46] OvmfPkg/VmgExitLib: Add support for MONITOR/MONITORX " Lendacky, Thomas
2020-05-22 14:55 ` [edk2-devel] " Laszlo Ersek
2020-05-19 21:50 ` [PATCH v8 25/46] OvmfPkg/VmgExitLib: Add support for MWAIT/MWAITX " Lendacky, Thomas
2020-05-22 14:56 ` [edk2-devel] " Laszlo Ersek
2020-05-19 21:50 ` [PATCH v8 26/46] OvmfPkg/VmgExitLib: Add support for DR7 Read/Write " Lendacky, Thomas
2020-05-22 14:59 ` [edk2-devel] " Laszlo Ersek
2020-05-25 14:47 ` Laszlo Ersek
2020-05-26 15:06 ` Lendacky, Thomas
2020-05-27 11:54 ` Laszlo Ersek
2020-05-19 21:50 ` [PATCH v8 27/46] OvmfPkg/MemEncryptSevLib: Add an SEV-ES guest indicator function Lendacky, Thomas
2020-05-19 21:50 ` [PATCH v8 28/46] OvmfPkg: Add support to perform SEV-ES initialization Lendacky, Thomas
2020-05-19 21:50 ` [PATCH v8 29/46] OvmfPkg: Create a GHCB page for use during Sec phase Lendacky, Thomas
2020-05-25 15:07 ` [edk2-devel] " Laszlo Ersek
2020-05-26 15:41 ` Lendacky, Thomas
2020-05-26 15:45 ` Lendacky, Thomas
2020-05-27 11:45 ` Laszlo Ersek
2020-05-19 21:50 ` [PATCH v8 30/46] OvmfPkg/PlatformPei: Reserve GHCB-related areas if S3 is supported Lendacky, Thomas
2020-05-19 21:50 ` [PATCH v8 31/46] OvmfPkg: Create GHCB pages for use during Pei and Dxe phase Lendacky, Thomas
2020-05-25 15:21 ` [edk2-devel] " Laszlo Ersek
2020-05-19 21:51 ` [PATCH v8 32/46] OvmfPkg/PlatformPei: Move early GDT into ram when SEV-ES is enabled Lendacky, Thomas
2020-05-19 21:51 ` [PATCH v8 33/46] UefiCpuPkg: Create an SEV-ES workarea PCD Lendacky, Thomas
2020-05-19 21:51 ` [PATCH v8 34/46] OvmfPkg: Reserve a page in memory for the SEV-ES usage Lendacky, Thomas
2020-05-25 16:00 ` [edk2-devel] " Laszlo Ersek
2020-05-26 14:28 ` Lendacky, Thomas
2020-05-26 21:47 ` Lendacky, Thomas
2020-05-27 11:50 ` Laszlo Ersek
2020-05-19 21:51 ` [PATCH v8 35/46] OvmfPkg/PlatformPei: Reserve SEV-ES work area if S3 is supported Lendacky, Thomas
2020-05-26 7:53 ` [edk2-devel] " Laszlo Ersek
2020-05-19 21:51 ` [PATCH v8 36/46] OvmfPkg/ResetVector: Add support for a 32-bit SEV check Lendacky, Thomas
2020-05-25 16:50 ` [edk2-devel] " Laszlo Ersek
2020-05-26 16:31 ` Lendacky, Thomas
2020-05-27 11:59 ` Laszlo Ersek
2020-05-19 21:51 ` [PATCH v8 37/46] OvmfPkg/Sec: Add #VC exception handling for Sec phase Lendacky, Thomas
2020-05-26 13:58 ` [edk2-devel] " Laszlo Ersek
2020-05-19 21:51 ` Lendacky, Thomas [this message]
2020-05-19 21:51 ` [PATCH v8 39/46] OvmfPkg/QemuFlashFvbServicesRuntimeDxe: Bypass flash detection with SEV-ES Lendacky, Thomas
2020-05-26 14:07 ` [edk2-devel] " Laszlo Ersek
2020-05-20 4:46 ` [PATCH v8 00/46] SEV-ES guest support Lendacky, Thomas
2020-05-20 16:56 ` [PATCH v8 40/46] UefiCpuPkg: Add a 16-bit protected mode code segment descriptor Lendacky, Thomas
2020-05-20 16:56 ` [PATCH v8 41/46] UefiCpuPkg/MpInitLib: Add CPU MP data flag to indicate if SEV-ES is enabled Lendacky, Thomas
2020-05-20 16:56 ` [PATCH v8 42/46] UefiCpuPkg: Allow AP booting under SEV-ES Lendacky, Thomas
2020-06-01 6:17 ` Dong, Eric
2020-06-01 16:10 ` Lendacky, Thomas
2020-06-05 6:13 ` Dong, Eric
2020-06-01 7:28 ` Dong, Eric
2020-06-01 16:58 ` Lendacky, Thomas
2020-05-20 16:56 ` [PATCH v8 43/46] OvmfPkg: Use the SEV-ES work area for the SEV-ES AP reset vector Lendacky, Thomas
2020-05-20 16:56 ` [PATCH v8 44/46] OvmfPkg: Move the GHCB allocations into reserved memory Lendacky, Thomas
2020-05-20 16:56 ` [PATCH v8 45/46] UefiCpuPkg/MpInitLib: Prepare SEV-ES guest APs for OS use Lendacky, Thomas
2020-05-20 16:56 ` [PATCH v8 46/46] Maintainers.txt: Add reviewers for the OvmfPkg SEV-related files Lendacky, Thomas
2020-05-19 21:54 ` Brijesh Singh
2020-05-26 14:12 ` [edk2-devel] " Laszlo Ersek
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