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[Qemu-devel] [PATCH for-4.1] target/i386: sev: Do not unpin ram device m
From: |
Alex Williamson |
Subject: |
[Qemu-devel] [PATCH for-4.1] target/i386: sev: Do not unpin ram device memory region |
Date: |
Mon, 15 Jul 2019 08:28:39 -0600 |
User-agent: |
StGit/0.19-dirty |
The commit referenced below skipped pinning ram device memory when
ram blocks are added, we need to do the same when they're removed.
Cc: Brijesh Singh <address@hidden>
Cc: Paolo Bonzini <address@hidden>
Fixes: cedc0ad539af ("target/i386: sev: Do not pin the ram device memory
region")
Signed-off-by: Alex Williamson <address@hidden>
---
target/i386/sev.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/target/i386/sev.c b/target/i386/sev.c
index 6dbdc3cdf10f..5ba1384ea1f6 100644
--- a/target/i386/sev.c
+++ b/target/i386/sev.c
@@ -161,6 +161,17 @@ sev_ram_block_removed(RAMBlockNotifier *n, void *host,
size_t size)
{
int r;
struct kvm_enc_region range;
+ ram_addr_t offset;
+ MemoryRegion *mr;
+
+ /*
+ * The RAM device presents a memory region that should be treated
+ * as IO region and should not have been pinned.
+ */
+ mr = memory_region_from_host(host, &offset);
+ if (mr && memory_region_is_ram_device(mr)) {
+ return;
+ }
range.addr = (__u64)(unsigned long)host;
range.size = size;
- [Qemu-devel] [PATCH for-4.1] target/i386: sev: Do not unpin ram device memory region,
Alex Williamson <=