linux/arch/x86
Oliver Upton e65733b5c5 KVM: x86: Redefine 'longmode' as a flag for KVM_EXIT_HYPERCALL
The 'longmode' field is a bit annoying as it blows an entire __u32 to
represent a boolean value. Since other architectures are looking to add
support for KVM_EXIT_HYPERCALL, now is probably a good time to clean it
up.

Redefine the field (and the remaining padding) as a set of flags.
Preserve the existing ABI by using bit 0 to indicate if the guest was in
long mode and requiring that the remaining 31 bits must be zero.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230404154050.2270077-2-oliver.upton@linux.dev
2023-04-05 12:07:41 +01:00
..
boot Kbuild updates for v6.3 2023-02-26 11:53:25 -08:00
coco - Fixup comment typo 2023-02-25 09:11:30 -08:00
configs
crypto crypto: x86/aria-avx - Do not use avx2 instructions 2023-02-14 13:39:33 +08:00
entry Changes in this cycle were: 2023-03-02 09:45:34 -08:00
events ARM: 2023-02-25 11:30:21 -08:00
hyperv x86/hyperv: Remove unregister syscore call from Hyper-V cleanup 2022-11-29 17:55:29 +00:00
ia32 x86/signal/32: Merge native and compat 32-bit signal code 2022-10-19 09:58:49 +02:00
include KVM: x86: Redefine 'longmode' as a flag for KVM_EXIT_HYPERCALL 2023-04-05 12:07:41 +01:00
kernel - Flush out logged errors immediately after MCA banks configuration 2023-03-19 09:57:53 -07:00
kvm KVM: x86: Redefine 'longmode' as a flag for KVM_EXIT_HYPERCALL 2023-04-05 12:07:41 +01:00
lib - Cache the AMD debug registers in per-CPU variables to avoid MSR writes 2023-02-21 14:51:40 -08:00
math-emu
mm x86/mm: Fix use of uninitialized buffer in sme_enable() 2023-03-16 12:22:25 +01:00
net bpf, x86: Simplify the parsing logic of structure parameters 2023-01-10 15:53:22 -08:00
pci x86/pci/xen: Fixup fallout from the PCI/MSI overhaul 2023-01-16 20:40:44 +01:00
platform A healthy mix of EFI contributions this time: 2023-02-23 14:41:48 -08:00
power - Add the call depth tracking mitigation for Retbleed which has 2022-12-14 15:03:00 -08:00
purgatory x86/purgatory: disable KMSAN instrumentation 2022-10-28 13:37:23 -07:00
ras
realmode x86/boot: Skip realmode init code when running as Xen PV guest 2022-11-25 12:05:22 +01:00
tools kbuild: allow to combine multiple V= levels 2023-01-22 23:43:32 +09:00
um This pull request contains the following changes for UML: 2023-03-01 09:13:00 -08:00
video
virt/vmx/tdx
xen xen: branch for v6.3-rc3 2023-03-17 10:45:49 -07:00
.gitignore
Kbuild
Kconfig x86/Kconfig: Fix spellos & punctuation 2023-01-25 12:21:04 +01:00
Kconfig.assembler crypto: x86/aria-avx - fix build failure with old binutils 2023-01-20 18:29:31 +08:00
Kconfig.cpu
Kconfig.debug
Makefile x86/build: Make 64-bit defconfig the default 2023-02-15 14:20:17 +01:00
Makefile_32.cpu
Makefile.um This pull request contains the following changes for UML: 2023-03-01 09:13:00 -08:00