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Tsirkin" , Richard Henderson , Marcel Apfelbaum , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [PATCH 1/5] hw/i386/intel_iommu: Remove IntelIOMMUState::buggy_eim field Date: Wed, 30 Apr 2025 16:26:05 +0200 Message-ID: <20250430142609.84134-2-philmd@linaro.org> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20250430142609.84134-1-philmd@linaro.org> References: <20250430142609.84134-1-philmd@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::732; envelope-from=philmd@linaro.org; helo=mail-qk1-x732.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1746023252158019100 The IntelIOMMUState::buggy_eim boolean was only set in the hw_compat_2_7[] array, via the 'x-buggy-eim=3Dtrue' property. We removed all machines using that array, lets remove that property, simplifying vtd_decide_config(). Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- include/hw/i386/intel_iommu.h | 1 - hw/i386/intel_iommu.c | 5 ++--- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/include/hw/i386/intel_iommu.h b/include/hw/i386/intel_iommu.h index e95477e8554..29304329d05 100644 --- a/include/hw/i386/intel_iommu.h +++ b/include/hw/i386/intel_iommu.h @@ -303,7 +303,6 @@ struct IntelIOMMUState { uint32_t intr_size; /* Number of IR table entries */ bool intr_eime; /* Extended interrupt mode enabled */ OnOffAuto intr_eim; /* Toggle for EIM cabability */ - bool buggy_eim; /* Force buggy EIM unless eim=3Doff */ uint8_t aw_bits; /* Host/IOVA address width (in bits) */ bool dma_drain; /* Whether DMA r/w draining enabled */ bool dma_translation; /* Whether DMA translation supported */ diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index 5f8ed1243d1..c980cecb4ee 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -3823,7 +3823,6 @@ static const Property vtd_properties[] =3D { DEFINE_PROP_UINT32("version", IntelIOMMUState, version, 0), DEFINE_PROP_ON_OFF_AUTO("eim", IntelIOMMUState, intr_eim, ON_OFF_AUTO_AUTO), - DEFINE_PROP_BOOL("x-buggy-eim", IntelIOMMUState, buggy_eim, false), DEFINE_PROP_UINT8("aw-bits", IntelIOMMUState, aw_bits, VTD_HOST_ADDRESS_WIDTH), DEFINE_PROP_BOOL("caching-mode", IntelIOMMUState, caching_mode, FALSE), @@ -4731,11 +4730,11 @@ static bool vtd_decide_config(IntelIOMMUState *s, E= rror **errp) } =20 if (s->intr_eim =3D=3D ON_OFF_AUTO_AUTO) { - s->intr_eim =3D (kvm_irqchip_in_kernel() || s->buggy_eim) + s->intr_eim =3D kvm_irqchip_in_kernel() && x86_iommu_ir_supported(x86_iommu) ? ON_OFF_AUTO_ON : ON_OFF_AUTO= _OFF; } - if (s->intr_eim =3D=3D ON_OFF_AUTO_ON && !s->buggy_eim) { + if (s->intr_eim =3D=3D ON_OFF_AUTO_ON) { if (kvm_irqchip_is_split() && !kvm_enable_x2apic()) { error_setg(errp, "eim=3Don requires support on the KVM side" "(X2APIC_API, first shipped in v4.7)"); --=20 2.47.1