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| author | Johannes Stoelp <johannes.stoelp@gmail.com> | 2021-12-10 23:29:21 +0100 |
|---|---|---|
| committer | Johannes Stoelp <johannes.stoelp@gmail.com> | 2021-12-10 23:29:21 +0100 |
| commit | f521b3ea4ce83725075ed049af14b006bed8033c (patch) | |
| tree | 1e2feb5abd3b4fc0c6a18969e17162cbf571c7f7 /examples/long_mode.rs | |
| parent | fb6b634de37e38fd1821f2cf9228df176f9526f5 (diff) | |
| download | mini-kvm-rs-f521b3ea4ce83725075ed049af14b006bed8033c.tar.gz mini-kvm-rs-f521b3ea4ce83725075ed049af14b006bed8033c.zip | |
example:long_mode: Map guest software page readonly.
Diffstat (limited to 'examples/long_mode.rs')
| -rw-r--r-- | examples/long_mode.rs | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/examples/long_mode.rs b/examples/long_mode.rs index 0696ae4..01b3f53 100644 --- a/examples/long_mode.rs +++ b/examples/long_mode.rs @@ -95,7 +95,8 @@ fn setup_long_mode_4level_paging(mem: &mut UserMem) -> PhysAddr { w(PhysAddr(0x2000), PAGE_ENTRY_PRESENT | PAGE_RENTRY_RW | 0x3000); // PTE[0] maps Virt [0x0000:0x0fff] -> Phys [0x4000:0x4fff]. - w(PhysAddr(0x3000), PAGE_ENTRY_PRESENT | PAGE_RENTRY_RW | 0x4000); + // Just because we can, map this page readonly, as we loaded our guest sw here. + w(PhysAddr(0x3000), PAGE_ENTRY_PRESENT | 0x4000); // PTE[1] maps Virt [0x1000:0x1fff] -> Phys [0x5000:0x5fff]. w(PhysAddr(0x3008), PAGE_ENTRY_PRESENT | PAGE_RENTRY_RW | 0x5000); // PTE[2] maps Virt [0x2000:0x2fff] -> Phys [0x6000:0x6fff]. |