The branch main has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=86b61ccb34d44e0e73dd2a68174ebc869ebccf8e
commit 86b61ccb34d44e0e73dd2a68174ebc869ebccf8e Author: Konstantin Belousov <[email protected]> AuthorDate: 2023-05-01 11:21:10 +0000 Commit: Konstantin Belousov <[email protected]> CommitDate: 2023-05-02 11:32:29 +0000 amd64 pmap: add pmap_pinit_pcids() helper to initialize pm_pcids array for a new user pmap Reviewed by: markj Tested by: pho Sponsored by: The FreeBSD Foundation Differential revision: https://reviews.freebsd.org/D39890 --- sys/amd64/amd64/pmap.c | 25 ++++++++++++++++--------- 1 file changed, 16 insertions(+), 9 deletions(-) diff --git a/sys/amd64/amd64/pmap.c b/sys/amd64/amd64/pmap.c index 92d9a66837cd..3b125041bb29 100644 --- a/sys/amd64/amd64/pmap.c +++ b/sys/amd64/amd64/pmap.c @@ -4193,12 +4193,24 @@ pmap_abort_ptp(pmap_t pmap, vm_offset_t va, vm_page_t mpte) } } +static void +pmap_pinit_pcids(pmap_t pmap, uint32_t pcid, int gen) +{ + struct pmap_pcid *pcidp; + int i; + + CPU_FOREACH(i) { + pcidp = &pmap->pm_pcids[i]; + pcidp->pm_pcid = pcid; + pcidp->pm_gen = gen; + } +} + void pmap_pinit0(pmap_t pmap) { struct proc *p; struct thread *td; - int i; PMAP_LOCK_INIT(pmap); pmap->pm_pmltop = kernel_pmap->pm_pmltop; @@ -4211,10 +4223,7 @@ pmap_pinit0(pmap_t pmap) TAILQ_INIT(&pmap->pm_pvchunk); bzero(&pmap->pm_stats, sizeof pmap->pm_stats); pmap->pm_flags = pmap_flags; - CPU_FOREACH(i) { - pmap->pm_pcids[i].pm_pcid = PMAP_PCID_KERN + 1; - pmap->pm_pcids[i].pm_gen = 1; - } + pmap_pinit_pcids(pmap, PMAP_PCID_KERN + 1, 1); pmap_activate_boot(pmap); td = curthread; if (pti) { @@ -4373,7 +4382,6 @@ pmap_pinit_type(pmap_t pmap, enum pmap_type pm_type, int flags) { vm_page_t pmltop_pg, pmltop_pgu; vm_paddr_t pmltop_phys; - int i; bzero(&pmap->pm_stats, sizeof pmap->pm_stats); @@ -4397,9 +4405,8 @@ pmap_pinit_type(pmap_t pmap, enum pmap_type pm_type, int flags) pmltop_phys = VM_PAGE_TO_PHYS(pmltop_pg); pmap->pm_pmltop = (pml5_entry_t *)PHYS_TO_DMAP(pmltop_phys); - CPU_FOREACH(i) { - pmap->pm_pcids[i].pm_pcid = PMAP_PCID_NONE; - pmap->pm_pcids[i].pm_gen = 0; + if (pmap_pcid_enabled) { + pmap_pinit_pcids(pmap, PMAP_PCID_NONE, 0); } pmap->pm_cr3 = PMAP_NO_CR3; /* initialize to an invalid value */ pmap->pm_ucr3 = PMAP_NO_CR3;
