git: c1723bbe2aa7 - main - arm64/vmm: Clear all pmc fields

From: Andrew Turner <andrew_at_FreeBSD.org>
Date: Thu, 02 Oct 2025 16:22:09 UTC
The branch main has been updated by andrew:

URL: https://cgit.FreeBSD.org/src/commit/?id=c1723bbe2aa7f6c8b23d3aa97379d89e883b0a93

commit c1723bbe2aa7f6c8b23d3aa97379d89e883b0a93
Author:     Andrew Turner <andrew@FreeBSD.org>
AuthorDate: 2025-10-02 15:34:23 +0000
Commit:     Andrew Turner <andrew@FreeBSD.org>
CommitDate: 2025-10-02 16:21:33 +0000

    arm64/vmm: Clear all pmc fields
    
    When clearing pmcntenclr_el0, pmintenclr_el1, and pmovsclr_el0 clear
    all bits as new fields may be added in the upper 32-bits.
    
    Sponsored by:   Arm Ltd
    Differential Revision:  https://reviews.freebsd.org/D52801
---
 sys/arm64/vmm/vmm_hyp.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sys/arm64/vmm/vmm_hyp.c b/sys/arm64/vmm/vmm_hyp.c
index 345535318f6e..c6eeca28b712 100644
--- a/sys/arm64/vmm/vmm_hyp.c
+++ b/sys/arm64/vmm/vmm_hyp.c
@@ -338,11 +338,11 @@ vmm_hyp_reg_restore(struct hypctx *hypctx, struct hyp *hyp, bool guest,
 	WRITE_SPECIALREG(pmccntr_el0, hypctx->pmccntr_el0);
 	WRITE_SPECIALREG(pmccfiltr_el0, hypctx->pmccfiltr_el0);
 	/* Clear all events/interrupts then enable them */
-	WRITE_SPECIALREG(pmcntenclr_el0, 0xfffffffful);
+	WRITE_SPECIALREG(pmcntenclr_el0, ~0ul);
 	WRITE_SPECIALREG(pmcntenset_el0, hypctx->pmcntenset_el0);
-	WRITE_SPECIALREG(pmintenclr_el1, 0xfffffffful);
+	WRITE_SPECIALREG(pmintenclr_el1, ~0ul);
 	WRITE_SPECIALREG(pmintenset_el1, hypctx->pmintenset_el1);
-	WRITE_SPECIALREG(pmovsclr_el0, 0xfffffffful);
+	WRITE_SPECIALREG(pmovsclr_el0, ~0ul);
 	WRITE_SPECIALREG(pmovsset_el0, hypctx->pmovsset_el0);
 
 	switch ((hypctx->pmcr_el0 & PMCR_N_MASK) >> PMCR_N_SHIFT) {