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| author | Xiaoyao Li <xiaoyao.li@intel.com> | 2024-03-20 03:39:07 -0500 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2024-04-23 17:35:26 +0200 |
| commit | b2e9426c04fdd32d93a3a37db6b0c2e67c88c335 (patch) | |
| tree | a9834ac90f0493c8a24502d2c6f1c7c97667aa6a /include/exec/cpu-common.h | |
| parent | 852f0048f3ea9f14de18eb279a99fccb6d250e8f (diff) | |
| download | focaccia-qemu-b2e9426c04fdd32d93a3a37db6b0c2e67c88c335.tar.gz focaccia-qemu-b2e9426c04fdd32d93a3a37db6b0c2e67c88c335.zip | |
physmem: Introduce ram_block_discard_guest_memfd_range()
When memory page is converted from private to shared, the original private memory is back'ed by guest_memfd. Introduce ram_block_discard_guest_memfd_range() for discarding memory in guest_memfd. Based on a patch by Isaku Yamahata <isaku.yamahata@intel.com>. Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com> Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Michael Roth <michael.roth@amd.com> Message-ID: <20240320083945.991426-12-michael.roth@amd.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include/exec/cpu-common.h')
| -rw-r--r-- | include/exec/cpu-common.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/exec/cpu-common.h b/include/exec/cpu-common.h index 6346df17ce..6d5318895a 100644 --- a/include/exec/cpu-common.h +++ b/include/exec/cpu-common.h @@ -159,6 +159,8 @@ typedef int (RAMBlockIterFunc)(RAMBlock *rb, void *opaque); int qemu_ram_foreach_block(RAMBlockIterFunc func, void *opaque); int ram_block_discard_range(RAMBlock *rb, uint64_t start, size_t length); +int ram_block_discard_guest_memfd_range(RAMBlock *rb, uint64_t start, + size_t length); #endif |