From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33986) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b49dq-0006P6-Jk for qemu-devel@nongnu.org; Sat, 21 May 2016 12:20:44 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1b49dl-0002zg-GV for qemu-devel@nongnu.org; Sat, 21 May 2016 12:20:41 -0400 Received: from mail-wm0-x244.google.com ([2a00:1450:400c:c09::244]:33720) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b49dl-0002za-99 for qemu-devel@nongnu.org; Sat, 21 May 2016 12:20:37 -0400 Received: by mail-wm0-x244.google.com with SMTP id 67so4249227wmg.0 for ; Sat, 21 May 2016 09:20:37 -0700 (PDT) From: "Aviv B.D" Date: Sat, 21 May 2016 19:19:48 +0300 Message-Id: <1463847590-22782-2-git-send-email-bd.aviv@gmail.com> In-Reply-To: <1463847590-22782-1-git-send-email-bd.aviv@gmail.com> References: <1463847590-22782-1-git-send-email-bd.aviv@gmail.com> Subject: [Qemu-devel] [PATCH v3 1/3] IOMMU: add VTD_CAP_CM to vIOMMU capability exposed to guest List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: "Michael S. Tsirkin" , Alex Williamson , Peter Xu , Jan Kiszka , Aviv Ben-David From: "Aviv Ben-David" This flag tells the guest to invalidate tlb cache also after unmap operations. Signed-off-by: Aviv Ben-David --- hw/i386/intel_iommu.c | 3 ++- hw/i386/intel_iommu_internal.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index 347718f..1af8da8 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -1949,7 +1949,8 @@ static void vtd_init(IntelIOMMUState *s) s->iq_last_desc_type = VTD_INV_DESC_NONE; s->next_frcd_reg = 0; s->cap = VTD_CAP_FRO | VTD_CAP_NFR | VTD_CAP_ND | VTD_CAP_MGAW | - VTD_CAP_SAGAW | VTD_CAP_MAMV | VTD_CAP_PSI | VTD_CAP_SLLPS; + VTD_CAP_SAGAW | VTD_CAP_MAMV | VTD_CAP_PSI | VTD_CAP_SLLPS | + VTD_CAP_CM; s->ecap = VTD_ECAP_QI | VTD_ECAP_IRO; vtd_reset_context_cache(s); diff --git a/hw/i386/intel_iommu_internal.h b/hw/i386/intel_iommu_internal.h index e5f514c..ae40f73 100644 --- a/hw/i386/intel_iommu_internal.h +++ b/hw/i386/intel_iommu_internal.h @@ -190,6 +190,7 @@ #define VTD_CAP_MAMV (VTD_MAMV << 48) #define VTD_CAP_PSI (1ULL << 39) #define VTD_CAP_SLLPS ((1ULL << 34) | (1ULL << 35)) +#define VTD_CAP_CM (1ULL << 7) /* Supported Adjusted Guest Address Widths */ #define VTD_CAP_SAGAW_SHIFT 8 -- 1.9.1