Date: Wed, 9 Apr 2025 00:53:45 GMT From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 8c6540b94d02 - stable/14 - x86/amdiommu: add amdiommu_is_running() Message-ID: <202504090053.5390rjBa088380@gitrepo.freebsd.org>
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The branch stable/14 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=8c6540b94d02bd1f61705df47186ec1736ef3df2 commit 8c6540b94d02bd1f61705df47186ec1736ef3df2 Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2025-01-25 09:58:35 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2025-04-09 00:53:17 +0000 x86/amdiommu: add amdiommu_is_running() (cherry picked from commit 3b1093e2562a62c96d8e80a306e19f4ac2d2a2f4) --- sys/x86/iommu/amd_drv.c | 8 ++++++++ sys/x86/iommu/amd_iommu.h | 2 ++ 2 files changed, 10 insertions(+) diff --git a/sys/x86/iommu/amd_drv.c b/sys/x86/iommu/amd_drv.c index 04e5444b0b46..7190387aa426 100644 --- a/sys/x86/iommu/amd_drv.c +++ b/sys/x86/iommu/amd_drv.c @@ -71,6 +71,7 @@ #include <x86/iommu/amd_iommu.h> static int amdiommu_enable = 0; +static bool amdiommu_running = false; /* * All enumerated AMD IOMMU units. @@ -555,6 +556,7 @@ amdiommu_attach(device_t dev) AMDIOMMU_UNLOCK(sc); TAILQ_INSERT_TAIL(&amdiommu_units, sc, unit_next); + amdiommu_running = true; return (0); errout8: @@ -617,6 +619,12 @@ static driver_t amdiommu_driver = { EARLY_DRIVER_MODULE(amdiommu, pci, amdiommu_driver, 0, 0, BUS_PASS_SUPPORTDEV); MODULE_DEPEND(amdiommu, pci, 1, 1, 1); +int +amdiommu_is_running(void) +{ + return (amdiommu_running ? 0 : ENXIO); +} + static struct amdiommu_unit * amdiommu_unit_by_device_id(u_int pci_seg, u_int device_id) { diff --git a/sys/x86/iommu/amd_iommu.h b/sys/x86/iommu/amd_iommu.h index 64dd13db9745..b9f07418ca9d 100644 --- a/sys/x86/iommu/amd_iommu.h +++ b/sys/x86/iommu/amd_iommu.h @@ -239,4 +239,6 @@ int amdiommu_domain_alloc_pgtbl(struct amdiommu_domain *domain); void amdiommu_domain_free_pgtbl(struct amdiommu_domain *domain); extern const struct iommu_domain_map_ops amdiommu_domain_map_ops; +int amdiommu_is_running(void); + #endif
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