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| author |   Paolo Bonzini <pbonzini@redhat.com> | 2024-05-10 10:49:02 -0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2024-05-10 13:20:18 -0400 |
| commit | 4232da23d75d173195c6766729e51947b64f83cd (patch) | |
| tree | 7eb1420b118d452c0b497bf6267ecdfb0a6d5931 /drivers/iommu/amd/iommu.c | |
| parent | Merge branch 'kvm-sev-es-ghcbv2' into HEAD (diff) | |
| parent | LoongArch: KVM: Add mmio trace events support (diff) | |
| download | wireguard-linux-4232da23d75d173195c6766729e51947b64f83cd.tar.xz wireguard-linux-4232da23d75d173195c6766729e51947b64f83cd.zip | |
Merge tag 'loongarch-kvm-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson into HEAD
LoongArch KVM changes for v6.10
1. Add ParaVirt IPI support.
2. Add software breakpoint support.
3. Add mmio trace events support.
Diffstat (limited to 'drivers/iommu/amd/iommu.c')
| -rw-r--r-- | drivers/iommu/amd/iommu.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c index d35c1b8c8e65..e692217fcb28 100644 --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -1692,26 +1692,29 @@ int amd_iommu_complete_ppr(struct pci_dev *pdev, u32 pasid, static u16 domain_id_alloc(void) { + unsigned long flags; int id; - spin_lock(&pd_bitmap_lock); + spin_lock_irqsave(&pd_bitmap_lock, flags); id = find_first_zero_bit(amd_iommu_pd_alloc_bitmap, MAX_DOMAIN_ID); BUG_ON(id == 0); if (id > 0 && id < MAX_DOMAIN_ID) __set_bit(id, amd_iommu_pd_alloc_bitmap); else id = 0; - spin_unlock(&pd_bitmap_lock); + spin_unlock_irqrestore(&pd_bitmap_lock, flags); return id; } static void domain_id_free(int id) { - spin_lock(&pd_bitmap_lock); + unsigned long flags; + + spin_lock_irqsave(&pd_bitmap_lock, flags); if (id > 0 && id < MAX_DOMAIN_ID) __clear_bit(id, amd_iommu_pd_alloc_bitmap); - spin_unlock(&pd_bitmap_lock); + spin_unlock_irqrestore(&pd_bitmap_lock, flags); } static void free_gcr3_tbl_level1(u64 *tbl) |