From: Tom Lendacky <thomas.lendacky@amd.com>
To: Ashish Kalra <Ashish.Kalra@amd.com>,
dave.hansen@linux.intel.com, tglx@linutronix.de,
mingo@redhat.com, bp@alien8.de, x86@kernel.org
Cc: hpa@zytor.com, rafael@kernel.org, peterz@infradead.org,
adrian.hunter@intel.com,
sathyanarayanan.kuppuswamy@linux.intel.com,
jun.nakajima@intel.com, kirill.shutemov@linux.intel.com,
rick.p.edgecombe@intel.com, linux-kernel@vger.kernel.org,
michael.roth@amd.com, seanjc@google.com, kai.huang@intel.com,
bhe@redhat.com, bdas@redhat.com, vkuznets@redhat.com,
dionnaglaze@google.com, anisinha@redhat.com, ardb@kernel.org,
dyoung@redhat.com, kexec@lists.infradead.org,
linux-coco@lists.linux.dev, jroedel@suse.de
Subject: Re: [PATCH v13 2/3] x86/mm: refactor __set_clr_pte_enc()
Date: Mon, 28 Oct 2024 11:15:42 -0500 [thread overview]
Message-ID: <c9ff351c-b802-9d26-c4d6-d94fb7ff3e1a@amd.com> (raw)
In-Reply-To: <5df4aa450447f28294d1c5a890e27b63ed4ded36.1722520012.git.ashish.kalra@amd.com>
On 8/1/24 14:14, Ashish Kalra wrote:
> From: Ashish Kalra <ashish.kalra@amd.com>
>
> Refactor __set_clr_pte_enc() and add two new helper functions to
> set/clear PTE C-bit from early SEV/SNP initialization code and
> later during shutdown/kexec especially when all CPUs are stopped
> and interrupts are disabled and set_memory_xx() interfaces can't
> be used.
>
> Co-developed-by: Borislav Petkov (AMD) <bp@alien8.de>
> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
> Signed-off-by: Ashish Kalra <ashish.kalra@amd.com>
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
> ---
> arch/x86/include/asm/sev.h | 20 ++++++++++
> arch/x86/mm/mem_encrypt_amd.c | 75 +++++++++++++++++++++++------------
> 2 files changed, 69 insertions(+), 26 deletions(-)
>
next prev parent reply other threads:[~2024-10-28 16:15 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-14 9:58 [PATCHv12 00/19] x86/tdx: Add kexec support Kirill A. Shutemov
2024-06-14 9:58 ` [PATCHv12 01/19] x86/acpi: Extract ACPI MADT wakeup code into a separate file Kirill A. Shutemov
2024-06-14 9:58 ` [PATCHv12 02/19] x86/apic: Mark acpi_mp_wake_* variables as __ro_after_init Kirill A. Shutemov
2024-06-14 9:58 ` [PATCHv12 03/19] cpu/hotplug: Add support for declaring CPU offlining not supported Kirill A. Shutemov
2024-06-14 9:58 ` [PATCHv12 04/19] cpu/hotplug, x86/acpi: Disable CPU offlining for ACPI MADT wakeup Kirill A. Shutemov
2024-06-14 9:58 ` [PATCHv12 05/19] x86/relocate_kernel: Use named labels for less confusion Kirill A. Shutemov
2024-06-14 9:58 ` [PATCHv12 06/19] x86/kexec: Keep CR4.MCE set during kexec for TDX guest Kirill A. Shutemov
2024-06-14 9:58 ` [PATCHv12 07/19] x86/mm: Make x86_platform.guest.enc_status_change_*() return errno Kirill A. Shutemov
2024-06-14 9:58 ` [PATCHv12 08/19] x86/mm: Return correct level from lookup_address() if pte is none Kirill A. Shutemov
2024-06-14 9:58 ` [PATCHv12 09/19] x86/tdx: Account shared memory Kirill A. Shutemov
2024-06-14 9:58 ` [PATCHv12 10/19] x86/mm: Add callbacks to prepare encrypted memory for kexec Kirill A. Shutemov
2024-06-14 9:58 ` [PATCHv12 11/19] x86/tdx: Convert shared memory back to private on kexec Kirill A. Shutemov
2024-06-14 9:58 ` [PATCHv12 12/19] x86/mm: Make e820__end_ram_pfn() cover E820_TYPE_ACPI ranges Kirill A. Shutemov
2024-06-14 9:58 ` [PATCHv12 13/19] x86/mm: Do not zap page table entries mapping unaccepted memory table during kdump Kirill A. Shutemov
2024-06-14 9:58 ` [PATCHv12 14/19] x86/acpi: Rename fields in acpi_madt_multiproc_wakeup structure Kirill A. Shutemov
2024-06-14 9:59 ` [PATCHv12 15/19] x86/acpi: Do not attempt to bring up secondary CPUs in kexec case Kirill A. Shutemov
2024-06-14 9:59 ` [PATCHv12 16/19] x86/smp: Add smp_ops.stop_this_cpu() callback Kirill A. Shutemov
2024-06-14 9:59 ` [PATCHv12 17/19] x86/mm: Introduce kernel_ident_mapping_free() Kirill A. Shutemov
2024-06-14 9:59 ` [PATCHv12 18/19] x86/acpi: Add support for CPU offlining for ACPI MADT wakeup method Kirill A. Shutemov
2024-06-14 9:59 ` [PATCHv12 19/19] ACPI: tables: Print MULTIPROC_WAKEUP when MADT is parsed Kirill A. Shutemov
2024-06-17 21:13 ` [PATCH v8 0/2] x86/snp: Add kexec support Ashish Kalra
2024-06-17 21:15 ` [PATCH v8 1/2] x86/boot/compressed: Skip Video Memory access in Decompressor for SEV-ES/SNP Ashish Kalra
2024-06-19 10:22 ` Borislav Petkov
2024-06-17 21:15 ` [PATCH v8 2/2] x86/snp: Convert shared memory back to private on kexec Ashish Kalra
2024-06-20 22:22 ` [PATCH v9 0/3] x86/snp: Add kexec support Ashish Kalra
2024-06-20 22:23 ` [PATCH v9 1/3] x86/sev: Move SEV compilation units Ashish Kalra
2024-06-20 22:23 ` [PATCH v9 2/3] x86/boot: Skip video memory access in the decompressor for SEV-ES/SNP Ashish Kalra
2024-06-24 15:03 ` Tom Lendacky
2024-06-20 22:23 ` [PATCH v9 3/3] x86/snp: Convert shared memory back to private on kexec Ashish Kalra
2024-06-24 15:18 ` Tom Lendacky
2024-06-24 18:26 ` Borislav Petkov
2024-06-24 20:57 ` Kalra, Ashish
2024-06-25 3:59 ` Borislav Petkov
2024-06-28 4:27 ` Kalra, Ashish
2024-06-28 14:01 ` Tom Lendacky
2024-06-28 19:14 ` Kalra, Ashish
2024-06-28 20:33 ` Kalra, Ashish
2024-06-24 18:21 ` [PATCH v10 0/2] x86/snp: Add kexec support Ashish Kalra
2024-06-24 18:21 ` [PATCH v10 1/2] x86/boot: Skip video memory access in the decompressor for SEV-ES/SNP Ashish Kalra
2024-06-24 18:22 ` [PATCH v10 2/2] Subject: [PATCH v9 3/3] x86/snp: Convert shared memory back to private on kexec Ashish Kalra
2024-07-02 19:56 ` [PATCH v11 0/3] x86/snp: Add kexec support Ashish Kalra
2024-07-02 19:57 ` [PATCH v11 1/3] x86/boot: Skip video memory access in the decompressor for SEV-ES/SNP Ashish Kalra
2024-07-02 19:57 ` [PATCH v11 2/3] x86/mm: refactor __set_clr_pte_enc() Ashish Kalra
2024-07-05 14:26 ` Borislav Petkov
2024-07-02 19:58 ` [PATCH v11 3/3] x86/snp: Convert shared memory back to private on kexec Ashish Kalra
2024-07-05 14:28 ` Borislav Petkov
2024-07-05 14:29 ` Borislav Petkov
2024-07-10 20:12 ` Kalra, Ashish
2024-07-30 19:20 ` [PATCH v12 0/3] x86/snp: Add kexec support Ashish Kalra
2024-07-30 19:21 ` [PATCH v12 1/3] x86/boot: Skip video memory access in the decompressor for SEV-ES/SNP Ashish Kalra
2024-07-30 19:21 ` [PATCH v12 2/3] x86/mm: refactor __set_clr_pte_enc() Ashish Kalra
2024-07-30 19:22 ` [PATCH v12 3/3] x86/snp: Convert shared memory back to private on kexec Ashish Kalra
2024-08-01 19:14 ` [PATCH v13 0/3] x86/snp: Add kexec support Ashish Kalra
2024-08-01 19:14 ` [PATCH v13 1/3] x86/boot: Skip video memory access in the decompressor for SEV-ES/SNP Ashish Kalra
2024-08-01 19:14 ` [PATCH v13 2/3] x86/mm: refactor __set_clr_pte_enc() Ashish Kalra
2024-10-28 16:15 ` Tom Lendacky [this message]
2024-08-01 19:14 ` [PATCH v13 3/3] x86/snp: Convert shared memory back to private on kexec Ashish Kalra
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