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Date:      Fri, 24 Jun 2022 14:41:12 GMT
From:      Mark Johnston <markj@FreeBSD.org>
To:        src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org
Subject:   git: bb5248944430 - stable/13 - vmm: move bumping VMEXIT_USERSPACE stat to the right place
Message-ID:  <202206241441.25OEfCYB085035@gitrepo.freebsd.org>

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The branch stable/13 has been updated by markj:

URL: https://cgit.FreeBSD.org/src/commit/?id=bb5248944430a092d338ff4847adf83640effd48

commit bb5248944430a092d338ff4847adf83640effd48
Author:     Vitaliy Gusev <gusev.vitaliy@gmail.com>
AuthorDate: 2022-06-09 12:57:25 +0000
Commit:     Mark Johnston <markj@FreeBSD.org>
CommitDate: 2022-06-24 14:40:48 +0000

    vmm: move bumping VMEXIT_USERSPACE stat to the right place
    
    Statistic for "number of vm exits handled in userspace" should be
    increased in vm_run() instead of vmx_run() because in some cases
    vm_run() doesn't exit to userspace and keeps entering the guest.
    
    Also svm_run's implementation even wrongly misses that stat.
    
    Reviewed by:    markj
    
    (cherry picked from commit e7d34aeda4e6fba68343dfcaf5e4aeed83a0ec87)
---
 sys/amd64/vmm/intel/vmx.c | 3 ---
 sys/amd64/vmm/vmm.c       | 1 +
 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/sys/amd64/vmm/intel/vmx.c b/sys/amd64/vmm/intel/vmx.c
index 62d9c64847d6..d4e0d2c65650 100644
--- a/sys/amd64/vmm/intel/vmx.c
+++ b/sys/amd64/vmm/intel/vmx.c
@@ -3184,9 +3184,6 @@ vmx_run(void *arg, int vcpu, register_t rip, pmap_t pmap,
 		      handled, vmexit->exitcode);
 	}
 
-	if (!handled)
-		vmm_stat_incr(vm, vcpu, VMEXIT_USERSPACE, 1);
-
 	VCPU_CTR1(vm, vcpu, "returning from vmx_run: exitcode %d",
 	    vmexit->exitcode);
 
diff --git a/sys/amd64/vmm/vmm.c b/sys/amd64/vmm/vmm.c
index f6ed99a6efbf..587a5bfdfa65 100644
--- a/sys/amd64/vmm/vmm.c
+++ b/sys/amd64/vmm/vmm.c
@@ -1821,6 +1821,7 @@ restart:
 	if (error == 0 && retu == false)
 		goto restart;
 
+	vmm_stat_incr(vm, vcpuid, VMEXIT_USERSPACE, 1);
 	VCPU_CTR2(vm, vcpuid, "retu %d/%d", error, vme->exitcode);
 
 	/* copy the exit information */



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