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don't let scratch region overlap with kvm apic page #1393

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ludfjig merged 1 commit into from
Apr 21, 2026
+3 −1
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don't let scratch region overlap with kvm apic page #1393

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4 changes: 3 additions & 1 deletion src/hyperlight_common/src/arch/i686/layout.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,9 @@ limitations under the License.
// allow compiling the guest for real mode boot scenarios.

pub const MAX_GVA: usize = 0xffff_ffff;
pub const MAX_GPA: usize = 0xffff_ffff;
/// Set below the KVM APIC access page at 0xFEE00000 to avoid EEXIST when scratch
/// regions are large enough to reach that address.
pub const MAX_GPA: usize = 0xFEDF_FFFF;

pub fn min_scratch_size(_input_data_size: usize, _output_data_size: usize) -> usize {
crate::vmem::PAGE_SIZE
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