From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-180.mta0.migadu.com (out-180.mta0.migadu.com [91.218.175.180]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1BD5655783 for ; Tue, 27 Feb 2024 22:43:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.180 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709073813; cv=none; b=J0i2uNGcEfXSHhcfyfyZm7OEGvpuNp5woqZ225YQY+O3TkXq5L1fYZ5kEGJdFv82nCElupXgHweSLsm1h+MR8x8AOZD89lSvDY2BTp8xTsmHoEMhIa40UpNOBrIkfBzRACSwx0ieoReW8U4XudK6BGG1e5eMARp5Gm1Otr1q4Zs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709073813; c=relaxed/simple; bh=44UfppR1g+s+4pZkqxJbI3okaGpCW6NXNPBAR+Ccp48=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=OCURCkFW5dxeFYwyACBe2+AGlINgsvuiNo3LJwYlbpPkjEQH6Tao1HQvqLDkLfbyjsm8S2gzBFGOg23MJV119tFx4B5/TEq3BYIHoH9ENs0mM8wbZx+VkMF4b0pnGpiRUSK8rcSDynJ3kuuuqCpwYl4UCJ46uWhETioGIATLOMc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=Lziu2iff; arc=none smtp.client-ip=91.218.175.180 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="Lziu2iff" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1709073810; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ccbCI5k+i6zOMbjfGnjf3Mq3RpSm87vBtzco7KOImnQ=; b=Lziu2iffTRJ4VqEwvExiQpTYy9Bak/p37vPeoFBTFj1qotah+nsjUof+76Tn0xdAg5GP2/ bz89BLvZuuP4kzOTp/YkzjHKufUHWRgDVQRjA1euPoLXH71wlojPQ5SohZod07L/16DzjX ytb7do0TUA1WMWxdIU7kewVJL+XLi70= From: Oliver Upton To: kvmarm@lists.linux.dev Cc: Marc Zyngier , James Morse , Suzuki K Poulose , Zenghui Yu , Eric Auger , Oliver Upton Subject: [PATCH 17/20] KVM: selftests: Add helper for enabling LPIs on a redistributor Date: Tue, 27 Feb 2024 22:42:46 +0000 Message-ID: <20240227224249.2209194-18-oliver.upton@linux.dev> In-Reply-To: <20240227224249.2209194-1-oliver.upton@linux.dev> References: <20240227224249.2209194-1-oliver.upton@linux.dev> Precedence: bulk X-Mailing-List: kvmarm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT The selftests GIC library presently does not support LPIs. Add a userspace helper for configuring a redistributor for LPIs, installing an LPI configuration table and LPI pending table. Signed-off-by: Oliver Upton --- .../selftests/kvm/include/aarch64/gic.h | 3 +++ .../selftests/kvm/lib/aarch64/gic_v3.c | 24 +++++++++++++++++++ .../testing/selftests/kvm/lib/aarch64/vgic.c | 2 ++ 3 files changed, 29 insertions(+) diff --git a/tools/testing/selftests/kvm/include/aarch64/gic.h b/tools/testing/selftests/kvm/include/aarch64/gic.h index 6d03188435e4..baeb3c859389 100644 --- a/tools/testing/selftests/kvm/include/aarch64/gic.h +++ b/tools/testing/selftests/kvm/include/aarch64/gic.h @@ -58,4 +58,7 @@ void gic_irq_clear_pending(unsigned int intid); bool gic_irq_get_pending(unsigned int intid); void gic_irq_set_config(unsigned int intid, bool is_edge); +void gic_rdist_enable_lpis(vm_paddr_t cfg_table, size_t cfg_table_size, + vm_paddr_t pend_table); + #endif /* SELFTEST_KVM_GIC_H */ diff --git a/tools/testing/selftests/kvm/lib/aarch64/gic_v3.c b/tools/testing/selftests/kvm/lib/aarch64/gic_v3.c index 515335179045..66d05506f78b 100644 --- a/tools/testing/selftests/kvm/lib/aarch64/gic_v3.c +++ b/tools/testing/selftests/kvm/lib/aarch64/gic_v3.c @@ -401,3 +401,27 @@ const struct gic_common_ops gicv3_ops = { .gic_irq_get_pending = gicv3_irq_get_pending, .gic_irq_set_config = gicv3_irq_set_config, }; + +void gic_rdist_enable_lpis(vm_paddr_t cfg_table, size_t cfg_table_size, + vm_paddr_t pend_table) +{ + volatile void *rdist_base = gicr_base_cpu(guest_get_vcpuid()); + + u32 ctlr; + u64 val; + + val = (cfg_table | + GICR_PROPBASER_InnerShareable | + GICR_PROPBASER_RaWaWb | + ((ilog2(cfg_table_size) - 1) & GICR_PROPBASER_IDBITS_MASK)); + writeq_relaxed(val, rdist_base + GICR_PROPBASER); + + val = (pend_table | + GICR_PENDBASER_InnerShareable | + GICR_PENDBASER_RaWaWb); + writeq_relaxed(val, rdist_base + GICR_PENDBASER); + + ctlr = readl_relaxed(rdist_base + GICR_CTLR); + ctlr |= GICR_CTLR_ENABLE_LPIS; + writel_relaxed(ctlr, rdist_base + GICR_CTLR); +} diff --git a/tools/testing/selftests/kvm/lib/aarch64/vgic.c b/tools/testing/selftests/kvm/lib/aarch64/vgic.c index 62243ba12f23..db9bf4987b02 100644 --- a/tools/testing/selftests/kvm/lib/aarch64/vgic.c +++ b/tools/testing/selftests/kvm/lib/aarch64/vgic.c @@ -3,8 +3,10 @@ * ARM Generic Interrupt Controller (GIC) v3 host support */ +#include #include #include +#include #include #include -- 2.44.0.rc1.240.g4c46232300-goog