From: Kees Cook <keescook@chromium.org>
To: Joerg Roedel <joro@8bytes.org>
Cc: x86@kernel.org, Joerg Roedel <jroedel@suse.de>,
hpa@zytor.com, Andy Lutomirski <luto@kernel.org>,
Dave Hansen <dave.hansen@linux.intel.com>,
Peter Zijlstra <peterz@infradead.org>,
Jiri Slaby <jslaby@suse.cz>,
Dan Williams <dan.j.williams@intel.com>,
Tom Lendacky <thomas.lendacky@amd.com>,
Juergen Gross <jgross@suse.com>,
David Rientjes <rientjes@google.com>,
Cfir Cohen <cfir@google.com>, Erdem Aktas <erdemaktas@google.com>,
Masami Hiramatsu <mhiramat@kernel.org>,
Mike Stunes <mstunes@vmware.com>,
Sean Christopherson <sean.j.christopherson@intel.com>,
Martin Radev <martin.b.radev@gmail.com>,
linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
virtualization@lists.linux-foundation.org
Subject: Re: [PATCH v5 70/75] x86/head/64: Don't call verify_cpu() on starting APs
Date: Fri, 24 Jul 2020 10:57:36 -0700 [thread overview]
Message-ID: <202007241057.2D78C2A41B@keescook> (raw)
In-Reply-To: <20200724160336.5435-71-joro@8bytes.org>
On Fri, Jul 24, 2020 at 06:03:31PM +0200, Joerg Roedel wrote:
> From: Joerg Roedel <jroedel@suse.de>
>
> The APs are not ready to handle exceptions when verify_cpu() is called
> in secondary_startup_64.
>
> Signed-off-by: Joerg Roedel <jroedel@suse.de>
Thanks for updating this! :)
Reviewed-by: Kees Cook <keescook@chromium.org>
--
Kees Cook
next prev parent reply other threads:[~2020-07-24 17:57 UTC|newest]
Thread overview: 97+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-24 16:02 [PATCH v5 00/75] x86: SEV-ES Guest Support Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 01/75] KVM: SVM: Add GHCB definitions Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 02/75] KVM: SVM: Add GHCB Accessor functions Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 03/75] KVM: SVM: Use __packed shorthand Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 04/75] x86/cpufeatures: Add SEV-ES CPU feature Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 05/75] x86/traps: Move pf error codes to <asm/trap_pf.h> Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 06/75] x86/insn: Make inat-tables.c suitable for pre-decompression code Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 07/75] x86/umip: Factor out instruction fetch Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 08/75] x86/umip: Factor out instruction decoding Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 09/75] x86/insn: Add insn_get_modrm_reg_off() Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 10/75] x86/insn: Add insn_has_rep_prefix() helper Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 11/75] x86/boot/compressed/64: Disable red-zone usage Joerg Roedel
2020-07-24 17:43 ` Kees Cook
2020-07-24 17:58 ` Arvind Sankar
2020-07-24 16:02 ` [PATCH v5 12/75] x86/boot/compressed/64: Add IDT Infrastructure Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 13/75] x86/boot/compressed/64: Rename kaslr_64.c to ident_map_64.c Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 14/75] x86/boot/compressed/64: Add page-fault handler Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 15/75] x86/boot/compressed/64: Always switch to own page-table Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 16/75] x86/boot/compressed/64: Don't pre-map memory in KASLR code Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 17/75] x86/boot/compressed/64: Change add_identity_map() to take start and end Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 18/75] x86/boot/compressed/64: Add stage1 #VC handler Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 19/75] x86/boot/compressed/64: Call set_sev_encryption_mask earlier Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 20/75] x86/boot/compressed/64: Check return value of kernel_ident_mapping_init() Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 21/75] x86/boot/compressed/64: Add set_page_en/decrypted() helpers Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 22/75] x86/boot/compressed/64: Setup GHCB Based VC Exception handler Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 23/75] x86/boot/compressed/64: Unmap GHCB page before booting the kernel Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 24/75] x86/sev-es: Add support for handling IOIO exceptions Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 25/75] x86/fpu: Move xgetbv()/xsetbv() into separate header Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 26/75] x86/sev-es: Add CPUID handling to #VC handler Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 27/75] x86/idt: Move IDT to data segment Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 28/75] x86/idt: Split idt_data setup out of set_intr_gate() Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 29/75] x86/head/64: Install startup GDT Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 30/75] x86/head/64: Setup MSR_GS_BASE before calling into C code Joerg Roedel
2020-07-24 17:42 ` Kees Cook
2020-07-24 16:02 ` [PATCH v5 31/75] x86/head/64: Load GDT after switch to virtual addresses Joerg Roedel
2020-07-24 17:40 ` Kees Cook
2020-07-24 16:02 ` [PATCH v5 32/75] x86/head/64: Load segment registers earlier Joerg Roedel
2020-07-24 17:42 ` Kees Cook
2020-07-24 16:02 ` [PATCH v5 33/75] x86/head/64: Switch to initial stack earlier Joerg Roedel
2020-07-24 17:43 ` Kees Cook
2020-07-24 16:02 ` [PATCH v5 34/75] x86/head/64: Make fixup_pointer() static inline Joerg Roedel
2020-07-24 17:52 ` Kees Cook
2020-07-24 16:02 ` [PATCH v5 35/75] x86/head/64: Load IDT earlier Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 36/75] x86/head/64: Move early exception dispatch to C code Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 37/75] x86/head/64: Set CR4.FSGSBASE early Joerg Roedel
2020-07-24 16:02 ` [PATCH v5 38/75] x86/sev-es: Add SEV-ES Feature Detection Joerg Roedel
2020-07-24 17:54 ` Kees Cook
2020-07-24 16:03 ` [PATCH v5 39/75] x86/sev-es: Print SEV-ES info into kernel log Joerg Roedel
2020-07-24 17:54 ` Kees Cook
2020-07-24 16:03 ` [PATCH v5 40/75] x86/sev-es: Compile early handler code into kernel image Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 41/75] x86/sev-es: Setup early #VC handler Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 42/75] x86/sev-es: Setup GHCB based boot " Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 43/75] x86/sev-es: Setup per-cpu GHCBs for the runtime handler Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 44/75] x86/sev-es: Allocate and Map IST stack for #VC handler Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 45/75] x86/sev-es: Adjust #VC IST Stack on entering NMI handler Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 46/75] x86/dumpstack/64: Add noinstr version of get_stack_info() Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 47/75] x86/entry/64: Add entry code for #VC handler Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 48/75] x86/sev-es: Add Runtime #VC Exception Handler Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 49/75] x86/sev-es: Wire up existing #VC exit-code handlers Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 50/75] x86/sev-es: Handle instruction fetches from user-space Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 51/75] x86/sev-es: Handle MMIO events Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 52/75] x86/sev-es: Handle MMIO String Instructions Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 53/75] x86/sev-es: Handle MSR events Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 54/75] x86/sev-es: Handle DR7 read/write events Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 55/75] x86/sev-es: Handle WBINVD Events Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 56/75] x86/sev-es: Handle RDTSC(P) Events Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 57/75] x86/sev-es: Handle RDPMC Events Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 58/75] x86/sev-es: Handle INVD Events Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 59/75] x86/sev-es: Handle MONITOR/MONITORX Events Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 60/75] x86/sev-es: Handle MWAIT/MWAITX Events Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 61/75] x86/sev-es: Handle VMMCALL Events Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 62/75] x86/sev-es: Handle #AC Events Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 63/75] x86/sev-es: Handle #DB Events Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 64/75] x86/paravirt: Allow hypervisor specific VMMCALL handling under SEV-ES Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 65/75] x86/kvm: Add KVM " Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 66/75] x86/vmware: Add VMware specific handling for VMMCALL " Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 67/75] x86/realmode: Add SEV-ES specific trampoline entry point Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 68/75] x86/realmode: Setup AP jump table Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 69/75] x86/smpboot: Setup TSS for starting AP Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 70/75] x86/head/64: Don't call verify_cpu() on starting APs Joerg Roedel
2020-07-24 17:57 ` Kees Cook [this message]
2020-07-24 16:03 ` [PATCH v5 71/75] x86/head/64: Rename start_cpu0 Joerg Roedel
2020-07-24 17:56 ` Kees Cook
2020-07-24 16:03 ` [PATCH v5 72/75] x86/sev-es: Support CPU offline/online Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 73/75] x86/sev-es: Handle NMI State Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 74/75] x86/efi: Add GHCB mappings when SEV-ES is active Joerg Roedel
2020-07-24 16:03 ` [PATCH v5 75/75] x86/sev-es: Check required CPU features for SEV-ES Joerg Roedel
2020-07-24 17:55 ` Kees Cook
2020-07-30 1:27 ` [PATCH v5 00/75] x86: SEV-ES Guest Support Mike Stunes
2020-07-30 12:26 ` Joerg Roedel
2020-07-30 23:23 ` Mike Stunes
2020-08-18 15:07 ` Joerg Roedel
2020-08-20 0:58 ` Mike Stunes
2020-08-20 12:10 ` Joerg Roedel
2020-08-21 8:05 ` Joerg Roedel
2020-08-21 17:42 ` Mike Stunes
2020-08-22 16:30 ` Joerg Roedel
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