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authorDave Airlie <airlied@redhat.com>2025-09-15 17:51:07 +1000
committerDave Airlie <airlied@redhat.com>2025-09-15 17:51:07 +1000
commit0d9f0083f7a5a31d91d501467b499bb8c4b25bdf (patch)
tree5670a6d87e7cb5c421809babf9dc9e72ff40f8ae /arch/x86/kvm/svm/sev.c
parent2cda9a063dd6f21e5294092a679afdcd0fc58549 (diff)
parentf83ec76bf285bea5727f478a68b894f5543ca76e (diff)
Merge tag 'v6.17-rc6' into drm-next
This is a backmerge of Linux 6.17-rc6, needed for msm, also requested by misc. Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'arch/x86/kvm/svm/sev.c')
-rw-r--r--arch/x86/kvm/svm/sev.c10
1 files changed, 3 insertions, 7 deletions
diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c
index 2fbdebf79fbb..0635bd71c10e 100644
--- a/arch/x86/kvm/svm/sev.c
+++ b/arch/x86/kvm/svm/sev.c
@@ -719,13 +719,6 @@ static void sev_clflush_pages(struct page *pages[], unsigned long npages)
static void sev_writeback_caches(struct kvm *kvm)
{
/*
- * Note, the caller is responsible for ensuring correctness if the mask
- * can be modified, e.g. if a CPU could be doing VMRUN.
- */
- if (cpumask_empty(to_kvm_sev_info(kvm)->have_run_cpus))
- return;
-
- /*
* Ensure that all dirty guest tagged cache entries are written back
* before releasing the pages back to the system for use. CLFLUSH will
* not do this without SME_COHERENT, and flushing many cache lines
@@ -739,6 +732,9 @@ static void sev_writeback_caches(struct kvm *kvm)
* serializing multiple calls and having responding CPUs (to the IPI)
* mark themselves as still running if they are running (or about to
* run) a vCPU for the VM.
+ *
+ * Note, the caller is responsible for ensuring correctness if the mask
+ * can be modified, e.g. if a CPU could be doing VMRUN.
*/
wbnoinvd_on_cpus_mask(to_kvm_sev_info(kvm)->have_run_cpus);
}