[v2] expose host-phys-bits to guest

[PATCH v2 0/2] expose host-phys-bits to guest

Gerd Hoffmann posted 2 patches 1 year, 8 months ago

Diff against v1
Download series mbox

Patches applied successfully (tree, apply log)
git fetch https://github.com/patchew-project/qemu tags/patchew/20220908113109.470792-1-kraxel@redhat.com

Maintainers: Sergio Lopez <slp@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, "Michael S. Tsirkin" <mst@redhat.com>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Richard Henderson <richard.henderson@linaro.org>, Eduardo Habkost <eduardo@habkost.net>, Marcelo Tosatti <mtosatti@redhat.com>

include/standard-headers/asm-x86/kvm_para.h | 3 ++-
target/i386/cpu.h                           | 3 ---
hw/i386/microvm.c                           | 7 ++++++-
target/i386/cpu.c                           | 3 +--
target/i386/host-cpu.c                      | 5 ++++-
target/i386/kvm/kvm.c                       | 1 +
6 files changed, 14 insertions(+), 8 deletions(-)

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[PATCH v2 0/2] expose host-phys-bits to guest

Posted by Gerd Hoffmann 1 year, 8 months ago

When the guest (firmware specifically) knows how big
the address space actually is it can be used better.

Some more background:
  https://bugzilla.redhat.com/show_bug.cgi?id=2084533

This is a RfC series exposes the information via cpuid.

v2:
 - change fvm hint name.
 - better commit message.

take care,
  Gerd

Gerd Hoffmann (2):
  [temporary] reserve bit KVM_HINTS_PHYS_ADDRESS_SIZE_DATA_VALID
  [RfC] expose host-phys-bits to guest

 include/standard-headers/asm-x86/kvm_para.h | 3 ++-
 target/i386/cpu.h                           | 3 ---
 hw/i386/microvm.c                           | 7 ++++++-
 target/i386/cpu.c                           | 3 +--
 target/i386/host-cpu.c                      | 5 ++++-
 target/i386/kvm/kvm.c                       | 1 +
 6 files changed, 14 insertions(+), 8 deletions(-)

-- 
2.37.3