linux/Documentation/virt
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
..
acrn docs: acrn: Introduce ACRN 2021-02-09 10:58:18 +01:00
coco virt: Add TDX guest driver 2022-11-17 11:04:23 -08:00
hyperv Documentation: hyperv: Add overview of clocks and timers 2022-07-13 14:04:48 -06:00
kvm KVM: x86: Redefine 'longmode' as a flag for KVM_EXIT_HYPERCALL 2023-04-05 12:07:41 +01:00
uml docs: UML: fix typo 2022-06-24 13:18:21 -06:00
guest-halt-polling.rst docs: virt: guest-halt-polling.txt convert to ReST 2020-02-12 20:10:08 +01:00
index.rst Docs/subsystem-apis: Remove '[The ]Linux' prefixes from titles of listed documents 2023-01-24 15:27:08 -07:00
ne_overview.rst nitro_enclaves: Update documentation for Arm64 support 2021-09-14 11:11:20 +02:00
paravirt_ops.rst