From: Feng Wu <feng.wu@intel.com> To: pbonzini@redhat.com, alex.williamson@redhat.com, joro@8bytes.org, mtosatti@redhat.com Cc: eric.auger@linaro.org, kvm@vger.kernel.org, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, Feng Wu <feng.wu@intel.com> Subject: [PATCH v8 13/13] iommu/vt-d: Add a command line parameter for VT-d posted-interrupts Date: Wed, 16 Sep 2015 16:50:09 +0800 [thread overview] Message-ID: <1442393409-2623-14-git-send-email-feng.wu@intel.com> (raw) In-Reply-To: <1442393409-2623-1-git-send-email-feng.wu@intel.com> Enable VT-d Posted-Interrtups and add a command line parameter for it. Signed-off-by: Feng Wu <feng.wu@intel.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> --- Documentation/kernel-parameters.txt | 1 + drivers/iommu/irq_remapping.c | 12 ++++++++---- 2 files changed, 9 insertions(+), 4 deletions(-) diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 1d6f045..52aca36 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1547,6 +1547,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted. nosid disable Source ID checking no_x2apic_optout BIOS x2APIC opt-out request will be ignored + nopost disable Interrupt Posting iomem= Disable strict checking of access to MMIO memory strict regions from userspace. diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c index 2d99930..d8c3997 100644 --- a/drivers/iommu/irq_remapping.c +++ b/drivers/iommu/irq_remapping.c @@ -22,7 +22,7 @@ int irq_remap_broken; int disable_sourceid_checking; int no_x2apic_optout; -int disable_irq_post = 1; +int disable_irq_post = 0; static int disable_irq_remap; static struct irq_remap_ops *remap_ops; @@ -58,14 +58,18 @@ static __init int setup_irqremap(char *str) return -EINVAL; while (*str) { - if (!strncmp(str, "on", 2)) + if (!strncmp(str, "on", 2)) { disable_irq_remap = 0; - else if (!strncmp(str, "off", 3)) + disable_irq_post = 0; + } else if (!strncmp(str, "off", 3)) { disable_irq_remap = 1; - else if (!strncmp(str, "nosid", 5)) + disable_irq_post = 1; + } else if (!strncmp(str, "nosid", 5)) disable_sourceid_checking = 1; else if (!strncmp(str, "no_x2apic_optout", 16)) no_x2apic_optout = 1; + else if (!strncmp(str, "nopost", 6)) + disable_irq_post = 1; str += strcspn(str, ","); while (*str == ',') -- 2.1.0
WARNING: multiple messages have this Message-ID (diff)
From: Feng Wu <feng.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> To: pbonzini-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, alex.williamson-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org, mtosatti-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org Cc: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kvm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, eric.auger-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org Subject: [PATCH v8 13/13] iommu/vt-d: Add a command line parameter for VT-d posted-interrupts Date: Wed, 16 Sep 2015 16:50:09 +0800 [thread overview] Message-ID: <1442393409-2623-14-git-send-email-feng.wu@intel.com> (raw) In-Reply-To: <1442393409-2623-1-git-send-email-feng.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> Enable VT-d Posted-Interrtups and add a command line parameter for it. Signed-off-by: Feng Wu <feng.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> Reviewed-by: Paolo Bonzini <pbonzini-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> --- Documentation/kernel-parameters.txt | 1 + drivers/iommu/irq_remapping.c | 12 ++++++++---- 2 files changed, 9 insertions(+), 4 deletions(-) diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 1d6f045..52aca36 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1547,6 +1547,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted. nosid disable Source ID checking no_x2apic_optout BIOS x2APIC opt-out request will be ignored + nopost disable Interrupt Posting iomem= Disable strict checking of access to MMIO memory strict regions from userspace. diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c index 2d99930..d8c3997 100644 --- a/drivers/iommu/irq_remapping.c +++ b/drivers/iommu/irq_remapping.c @@ -22,7 +22,7 @@ int irq_remap_broken; int disable_sourceid_checking; int no_x2apic_optout; -int disable_irq_post = 1; +int disable_irq_post = 0; static int disable_irq_remap; static struct irq_remap_ops *remap_ops; @@ -58,14 +58,18 @@ static __init int setup_irqremap(char *str) return -EINVAL; while (*str) { - if (!strncmp(str, "on", 2)) + if (!strncmp(str, "on", 2)) { disable_irq_remap = 0; - else if (!strncmp(str, "off", 3)) + disable_irq_post = 0; + } else if (!strncmp(str, "off", 3)) { disable_irq_remap = 1; - else if (!strncmp(str, "nosid", 5)) + disable_irq_post = 1; + } else if (!strncmp(str, "nosid", 5)) disable_sourceid_checking = 1; else if (!strncmp(str, "no_x2apic_optout", 16)) no_x2apic_optout = 1; + else if (!strncmp(str, "nopost", 6)) + disable_irq_post = 1; str += strcspn(str, ","); while (*str == ',') -- 2.1.0
next prev parent reply other threads:[~2015-09-16 9:05 UTC|newest] Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-09-16 8:49 [PATCH v8 00/13] Add VT-d Posted-Interrupts support Feng Wu 2015-09-16 8:49 ` Feng Wu 2015-09-16 8:49 ` [PATCH v8 01/13] KVM: Extend struct pi_desc for VT-d Posted-Interrupts Feng Wu 2015-09-16 8:49 ` Feng Wu 2015-09-16 8:49 ` [PATCH v8 02/13] KVM: Add some helper functions for Posted-Interrupts Feng Wu 2015-09-16 8:49 ` Feng Wu 2015-09-16 8:49 ` [PATCH v8 03/13] KVM: Define a new interface kvm_intr_is_single_vcpu() Feng Wu 2015-09-16 8:49 ` Feng Wu 2015-09-16 9:23 ` Paolo Bonzini 2015-09-16 9:23 ` Paolo Bonzini 2015-09-17 3:17 ` Wu, Feng 2015-09-17 3:17 ` Wu, Feng 2015-09-17 9:42 ` Paolo Bonzini 2015-09-17 13:36 ` Wu, Feng 2015-09-17 13:36 ` Wu, Feng 2015-09-17 14:24 ` Paolo Bonzini 2015-09-17 14:24 ` Paolo Bonzini 2015-09-17 15:58 ` Radim Krčmář 2015-09-17 16:00 ` Paolo Bonzini 2015-09-17 16:00 ` Paolo Bonzini 2015-09-17 23:18 ` Wu, Feng 2015-09-17 23:18 ` Wu, Feng 2015-09-18 16:16 ` Radim Krčmář 2015-09-18 16:16 ` Radim Krčmář 2015-09-18 16:17 ` Paolo Bonzini 2015-09-18 16:17 ` Paolo Bonzini 2015-09-17 23:15 ` Wu, Feng 2015-09-17 23:15 ` Wu, Feng 2015-09-16 8:50 ` [PATCH v8 04/13] KVM: Make struct kvm_irq_routing_table accessible Feng Wu 2015-09-16 8:50 ` Feng Wu 2015-09-16 8:50 ` [PATCH v8 05/13] KVM: make kvm_set_msi_irq() public Feng Wu 2015-09-16 8:50 ` Feng Wu 2015-09-16 8:50 ` [PATCH v8 06/13] vfio: Register/unregister irq_bypass_producer Feng Wu 2015-09-16 8:50 ` Feng Wu 2015-09-16 8:50 ` [PATCH v8 07/13] KVM: x86: Update IRTE for posted-interrupts Feng Wu 2015-09-16 8:50 ` Feng Wu 2015-09-16 8:50 ` [PATCH v8 08/13] KVM: Implement IRQ bypass consumer callbacks for x86 Feng Wu 2015-09-16 8:50 ` Feng Wu 2015-09-16 8:50 ` [PATCH v8 09/13] KVM: Add an arch specific hooks in 'struct kvm_kernel_irqfd' Feng Wu 2015-09-16 8:50 ` Feng Wu 2015-09-16 9:27 ` Paolo Bonzini 2015-09-16 9:27 ` Paolo Bonzini 2015-09-17 1:51 ` Wu, Feng 2015-09-17 1:51 ` Wu, Feng 2015-09-17 9:38 ` Paolo Bonzini 2015-09-17 9:38 ` Paolo Bonzini 2015-09-16 8:50 ` [PATCH v8 10/13] KVM: Update Posted-Interrupts Descriptor when vCPU is preempted Feng Wu 2015-09-16 8:50 ` Feng Wu 2015-09-16 9:29 ` Paolo Bonzini 2015-09-16 9:29 ` Paolo Bonzini 2015-09-16 8:50 ` [PATCH v8 11/13] KVM: Update Posted-Interrupts Descriptor when vCPU is blocked Feng Wu 2015-09-16 8:50 ` Feng Wu 2015-09-16 9:32 ` Paolo Bonzini 2015-09-16 9:32 ` Paolo Bonzini 2015-09-16 8:50 ` [PATCH v8 12/13] KVM: Warn if 'SN' is set during posting interrupts by software Feng Wu 2015-09-16 8:50 ` Feng Wu 2015-09-16 9:32 ` Paolo Bonzini 2015-09-16 9:32 ` Paolo Bonzini 2015-09-16 8:50 ` Feng Wu [this message] 2015-09-16 8:50 ` [PATCH v8 13/13] iommu/vt-d: Add a command line parameter for VT-d posted-interrupts Feng Wu 2015-09-16 9:34 ` [PATCH v8 00/13] Add VT-d Posted-Interrupts support Paolo Bonzini 2015-09-16 9:34 ` Paolo Bonzini
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