Commit-ID: 61d047be99757fd9b0af900d7abce9a13a337488 Gitweb: http://git.kernel.org/tip/61d047be99757fd9b0af900d7abce9a13a337488 Author: Joerg Roedel <joerg.roedel@xxxxxxx> AuthorDate: Tue, 9 Jun 2009 17:56:09 +0200 Committer: Joerg Roedel <joerg.roedel@xxxxxxx> CommitDate: Mon, 15 Jun 2009 15:20:40 +0200 x86: disable IOMMUs on kernel crash If the IOMMUs are still enabled when the kexec kernel boots access to the disk is not possible. This is bad for tools like kdump or anything else which wants to use PCI devices. Signed-off-by: Joerg Roedel <joerg.roedel@xxxxxxx> --- arch/x86/kernel/crash.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c index ff95824..5e409dc 100644 --- a/arch/x86/kernel/crash.c +++ b/arch/x86/kernel/crash.c @@ -27,6 +27,7 @@ #include <asm/cpu.h> #include <asm/reboot.h> #include <asm/virtext.h> +#include <asm/iommu.h> #if defined(CONFIG_SMP) && defined(CONFIG_X86_LOCAL_APIC) @@ -103,5 +104,10 @@ void native_machine_crash_shutdown(struct pt_regs *regs) #ifdef CONFIG_HPET_TIMER hpet_disable(); #endif + +#ifdef CONFIG_X86_64 + pci_iommu_shutdown(); +#endif + crash_save_cpu(regs, safe_smp_processor_id()); } -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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