From patchwork Sat Apr 1 10:49:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mostafa Saleh X-Patchwork-Id: 1764020 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=google.com header.i=@google.com header.a=rsa-sha256 header.s=20210112 header.b=qACRRSc+; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4PpYrQ1BcHz1yYb for ; Sat, 1 Apr 2023 21:52:06 +1100 (AEDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1piYoW-0000qe-Sw; Sat, 01 Apr 2023 06:50:28 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <3ZAwoZAgKCkUztvz0hmhnvvnsl.jvtxlt1-kl2lsuvunu1.vyn@flex--smostafa.bounces.google.com>) id 1piYoM-0000nr-V0 for qemu-devel@nongnu.org; Sat, 01 Apr 2023 06:50:19 -0400 Received: from mail-wm1-x349.google.com ([2a00:1450:4864:20::349]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from <3ZAwoZAgKCkUztvz0hmhnvvnsl.jvtxlt1-kl2lsuvunu1.vyn@flex--smostafa.bounces.google.com>) id 1piYoJ-0003Do-PC for qemu-devel@nongnu.org; Sat, 01 Apr 2023 06:50:17 -0400 Received: by mail-wm1-x349.google.com with SMTP id bg33-20020a05600c3ca100b003ef6d684105so9048029wmb.1 for ; Sat, 01 Apr 2023 03:50:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; t=1680346213; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=zVDAZMhAgBT9TXpgUYUZSHvHWpJ2ghy01UMwDbx0Zp8=; b=qACRRSc+bTXy6DCbCGhfyhu9g/Jtppikoscy7CKXf3zI52+yC+DllsguKZ2OkAyaXj zBEEFMz8Rl7GKMte0N6KmpjmGi2HCYrHtsMJHUCAFvGUnSLxoWXF3Kb4A2rKztgzjRUz FpjuJ6GKhqWNBNAMYgisejkfYNhkKF4ipvXZQ40y3DA4jtxQ5sS/wzdQpx4PhaGLCY+l 4OZXsg2a0brem9ThOQ9yrc853h6zA/oSlExh094yWJIWPdn9+DANLc8qCLRHHQWxnyiL /U7Q5vKpuwKCFkgw4Fvlt1PDIf7w+6OfI0fFFSQG0hpDuFJFVJfowKUq3aqRDfLQKxGo JG8g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1680346213; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=zVDAZMhAgBT9TXpgUYUZSHvHWpJ2ghy01UMwDbx0Zp8=; b=zv5ClPYLwfgEzrvpqAB5FhpCnWV56kvZjWTCcYwm3wX8x5p65D5PHDbds/cWwIyhrv JQhWqlQ/4++sOaUcysNCixkgovTujcTgKNxeneg19AWC7dWsZZztWK+u+Ci+g5IxZbKb GA6r2JsIlen4739uHRLAcSmamZam1L6kvkz13L1Mh7scCuB7ts0yRMnAsnA3PSb4lySh omMbPsCBHDu8eVgUKmwXxg6OMY7h149TBONGPoTKaENL4qteCdsJ+Zvm6NZfoNHQk5Uj T17dGNwrIe0AzncRTXONFCAob7+bD1XxlhZikrp2G6Ul3ZX8WmRgrOgwltTBgVftRiTS SRsA== X-Gm-Message-State: AAQBX9enXuSw5SS3G5YWTAa41ES4UbTbIZzdpTeIC6RR9fPHEjm/sZMS vFjbLjmWCpjoMz3BXyW/Z+3ohHuI+P/nVdxUd0ZaukPmufaNAF//eDICtOflaCynUDWBIXPm4RQ +RC2zWyRAURJqPBkOg+JToKelqWt6DuLM8BFOcIYOptMbyQsexJw5U6bTDuQ96jyxOQ== X-Google-Smtp-Source: AKy350Z5rl+d85sjL2FTUJm3T+bLoAsNOru5WksK0pyVcmM6CVUKy0ax7WYNhwiYcR7Ky2iC8t9mtq2wJwqS1w== X-Received: from mostafa.c.googlers.com ([fda3:e722:ac3:cc00:28:9cb1:c0a8:333c]) (user=smostafa job=sendgmr) by 2002:a5d:69d1:0:b0:2e4:cc35:dbb5 with SMTP id s17-20020a5d69d1000000b002e4cc35dbb5mr1915191wrw.0.1680346212776; Sat, 01 Apr 2023 03:50:12 -0700 (PDT) Date: Sat, 1 Apr 2023 10:49:50 +0000 In-Reply-To: <20230401104953.1325983-1-smostafa@google.com> Mime-Version: 1.0 References: <20230401104953.1325983-1-smostafa@google.com> X-Mailer: git-send-email 2.40.0.348.gf938b09366-goog Message-ID: <20230401104953.1325983-8-smostafa@google.com> Subject: [RFC PATCH v3 07/10] hw/arm/smmuv3: Add VMID to TLB tagging From: Mostafa Saleh To: qemu-devel@nongnu.org Cc: jean-philippe@linaro.org, eric.auger@redhat.com, peter.maydell@linaro.org, qemu-arm@nongnu.org, richard.henderson@linaro.org, Mostafa Saleh Received-SPF: pass client-ip=2a00:1450:4864:20::349; envelope-from=3ZAwoZAgKCkUztvz0hmhnvvnsl.jvtxlt1-kl2lsuvunu1.vyn@flex--smostafa.bounces.google.com; helo=mail-wm1-x349.google.com X-Spam_score_int: -95 X-Spam_score: -9.6 X-Spam_bar: --------- X-Spam_report: (-9.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, 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, USER_IN_DEF_DKIM_WL=-7.5 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Allow TLB to be tagged with VMID. If stage-1 is only supported, VMID is set to -1 and ignored from STE and CMD_TLBI_NH* cmds. Update smmu_iotlb_insert trace event to have vmid. Signed-off-by: Mostafa Saleh Reviewed-by: Eric Auger --- Changes in v3: - Collected Reviewed-by tag. Changes in v2: -Fix TLB aliasing issue from missing check in smmu_iotlb_key_equal. -Add vmid to traces smmu_iotlb_insert and smmu_iotlb_lookup_hit/miss. -Add vmid to hash function. --- hw/arm/smmu-common.c | 36 ++++++++++++++++++++++-------------- hw/arm/smmu-internal.h | 2 ++ hw/arm/smmuv3.c | 12 +++++++++--- hw/arm/trace-events | 6 +++--- include/hw/arm/smmu-common.h | 5 +++-- 5 files changed, 39 insertions(+), 22 deletions(-) diff --git a/hw/arm/smmu-common.c b/hw/arm/smmu-common.c index a4ebd004c5..72ed6edd48 100644 --- a/hw/arm/smmu-common.c +++ b/hw/arm/smmu-common.c @@ -38,7 +38,7 @@ static guint smmu_iotlb_key_hash(gconstpointer v) /* Jenkins hash */ a = b = c = JHASH_INITVAL + sizeof(*key); - a += key->asid + key->level + key->tg; + a += key->asid + key->vmid + key->level + key->tg; b += extract64(key->iova, 0, 32); c += extract64(key->iova, 32, 32); @@ -53,13 +53,15 @@ static gboolean smmu_iotlb_key_equal(gconstpointer v1, gconstpointer v2) SMMUIOTLBKey *k1 = (SMMUIOTLBKey *)v1, *k2 = (SMMUIOTLBKey *)v2; return (k1->asid == k2->asid) && (k1->iova == k2->iova) && - (k1->level == k2->level) && (k1->tg == k2->tg); + (k1->level == k2->level) && (k1->tg == k2->tg) && + (k1->vmid == k2->vmid); } -SMMUIOTLBKey smmu_get_iotlb_key(uint16_t asid, uint64_t iova, +SMMUIOTLBKey smmu_get_iotlb_key(uint16_t asid, uint16_t vmid, uint64_t iova, uint8_t tg, uint8_t level) { - SMMUIOTLBKey key = {.asid = asid, .iova = iova, .tg = tg, .level = level}; + SMMUIOTLBKey key = {.asid = asid, .vmid = vmid, .iova = iova, + .tg = tg, .level = level}; return key; } @@ -78,7 +80,8 @@ SMMUTLBEntry *smmu_iotlb_lookup(SMMUState *bs, SMMUTransCfg *cfg, uint64_t mask = subpage_size - 1; SMMUIOTLBKey key; - key = smmu_get_iotlb_key(cfg->asid, iova & ~mask, tg, level); + key = smmu_get_iotlb_key(cfg->asid, cfg->s2cfg.vmid, + iova & ~mask, tg, level); entry = g_hash_table_lookup(bs->iotlb, &key); if (entry) { break; @@ -88,13 +91,13 @@ SMMUTLBEntry *smmu_iotlb_lookup(SMMUState *bs, SMMUTransCfg *cfg, if (entry) { cfg->iotlb_hits++; - trace_smmu_iotlb_lookup_hit(cfg->asid, iova, + trace_smmu_iotlb_lookup_hit(cfg->asid, cfg->s2cfg.vmid, iova, cfg->iotlb_hits, cfg->iotlb_misses, 100 * cfg->iotlb_hits / (cfg->iotlb_hits + cfg->iotlb_misses)); } else { cfg->iotlb_misses++; - trace_smmu_iotlb_lookup_miss(cfg->asid, iova, + trace_smmu_iotlb_lookup_miss(cfg->asid, cfg->s2cfg.vmid, iova, cfg->iotlb_hits, cfg->iotlb_misses, 100 * cfg->iotlb_hits / (cfg->iotlb_hits + cfg->iotlb_misses)); @@ -111,8 +114,10 @@ void smmu_iotlb_insert(SMMUState *bs, SMMUTransCfg *cfg, SMMUTLBEntry *new) smmu_iotlb_inv_all(bs); } - *key = smmu_get_iotlb_key(cfg->asid, new->entry.iova, tg, new->level); - trace_smmu_iotlb_insert(cfg->asid, new->entry.iova, tg, new->level); + *key = smmu_get_iotlb_key(cfg->asid, cfg->s2cfg.vmid, new->entry.iova, + tg, new->level); + trace_smmu_iotlb_insert(cfg->asid, cfg->s2cfg.vmid, new->entry.iova, + tg, new->level); g_hash_table_insert(bs->iotlb, key, new); } @@ -130,8 +135,7 @@ static gboolean smmu_hash_remove_by_asid(gpointer key, gpointer value, return SMMU_IOTLB_ASID(*iotlb_key) == asid; } - -static gboolean smmu_hash_remove_by_asid_iova(gpointer key, gpointer value, +static gboolean smmu_hash_remove_by_asid_vmid_iova(gpointer key, gpointer value, gpointer user_data) { SMMUTLBEntry *iter = (SMMUTLBEntry *)value; @@ -142,18 +146,21 @@ static gboolean smmu_hash_remove_by_asid_iova(gpointer key, gpointer value, if (info->asid >= 0 && info->asid != SMMU_IOTLB_ASID(iotlb_key)) { return false; } + if (info->vmid >= 0 && info->vmid != SMMU_IOTLB_VMID(iotlb_key)) { + return false; + } return ((info->iova & ~entry->addr_mask) == entry->iova) || ((entry->iova & ~info->mask) == info->iova); } -void smmu_iotlb_inv_iova(SMMUState *s, int asid, dma_addr_t iova, +void smmu_iotlb_inv_iova(SMMUState *s, int asid, int vmid, dma_addr_t iova, uint8_t tg, uint64_t num_pages, uint8_t ttl) { /* if tg is not set we use 4KB range invalidation */ uint8_t granule = tg ? tg * 2 + 10 : 12; if (ttl && (num_pages == 1) && (asid >= 0)) { - SMMUIOTLBKey key = smmu_get_iotlb_key(asid, iova, tg, ttl); + SMMUIOTLBKey key = smmu_get_iotlb_key(asid, vmid, iova, tg, ttl); if (g_hash_table_remove(s->iotlb, &key)) { return; @@ -166,10 +173,11 @@ void smmu_iotlb_inv_iova(SMMUState *s, int asid, dma_addr_t iova, SMMUIOTLBPageInvInfo info = { .asid = asid, .iova = iova, + .vmid = vmid, .mask = (num_pages * 1 << granule) - 1}; g_hash_table_foreach_remove(s->iotlb, - smmu_hash_remove_by_asid_iova, + smmu_hash_remove_by_asid_vmid_iova, &info); } diff --git a/hw/arm/smmu-internal.h b/hw/arm/smmu-internal.h index a9454f914e..843bebb185 100644 --- a/hw/arm/smmu-internal.h +++ b/hw/arm/smmu-internal.h @@ -132,9 +132,11 @@ static inline int pgd_concat_idx(int start_level, int granule_sz, } #define SMMU_IOTLB_ASID(key) ((key).asid) +#define SMMU_IOTLB_VMID(key) ((key).vmid) typedef struct SMMUIOTLBPageInvInfo { int asid; + int vmid; uint64_t iova; uint64_t mask; } SMMUIOTLBPageInvInfo; diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c index a1f4a4f902..d7e7003da9 100644 --- a/hw/arm/smmuv3.c +++ b/hw/arm/smmuv3.c @@ -1073,7 +1073,7 @@ static void smmuv3_s1_range_inval(SMMUState *s, Cmd *cmd) { dma_addr_t end, addr = CMD_ADDR(cmd); uint8_t type = CMD_TYPE(cmd); - uint16_t vmid = CMD_VMID(cmd); + int vmid = -1; uint8_t scale = CMD_SCALE(cmd); uint8_t num = CMD_NUM(cmd); uint8_t ttl = CMD_TTL(cmd); @@ -1082,6 +1082,12 @@ static void smmuv3_s1_range_inval(SMMUState *s, Cmd *cmd) uint64_t num_pages; uint8_t granule; int asid = -1; + SMMUv3State *smmuv3 = ARM_SMMUV3(s); + + /* Only consider VMID if stage-2 is supported. */ + if (STAGE2_SUPPORTED(smmuv3)) { + vmid = CMD_VMID(cmd); + } if (type == SMMU_CMD_TLBI_NH_VA) { asid = CMD_ASID(cmd); @@ -1090,7 +1096,7 @@ static void smmuv3_s1_range_inval(SMMUState *s, Cmd *cmd) if (!tg) { trace_smmuv3_s1_range_inval(vmid, asid, addr, tg, 1, ttl, leaf); smmuv3_inv_notifiers_iova(s, asid, addr, tg, 1); - smmu_iotlb_inv_iova(s, asid, addr, tg, 1, ttl); + smmu_iotlb_inv_iova(s, asid, vmid, addr, tg, 1, ttl); return; } @@ -1108,7 +1114,7 @@ static void smmuv3_s1_range_inval(SMMUState *s, Cmd *cmd) num_pages = (mask + 1) >> granule; trace_smmuv3_s1_range_inval(vmid, asid, addr, tg, num_pages, ttl, leaf); smmuv3_inv_notifiers_iova(s, asid, addr, tg, num_pages); - smmu_iotlb_inv_iova(s, asid, addr, tg, num_pages, ttl); + smmu_iotlb_inv_iova(s, asid, vmid, addr, tg, num_pages, ttl); addr += mask + 1; } } diff --git a/hw/arm/trace-events b/hw/arm/trace-events index 205ac04573..705104e58b 100644 --- a/hw/arm/trace-events +++ b/hw/arm/trace-events @@ -14,9 +14,9 @@ smmu_iotlb_inv_all(void) "IOTLB invalidate all" smmu_iotlb_inv_asid(uint16_t asid) "IOTLB invalidate asid=%d" smmu_iotlb_inv_iova(uint16_t asid, uint64_t addr) "IOTLB invalidate asid=%d addr=0x%"PRIx64 smmu_inv_notifiers_mr(const char *name) "iommu mr=%s" -smmu_iotlb_lookup_hit(uint16_t asid, uint64_t addr, uint32_t hit, uint32_t miss, uint32_t p) "IOTLB cache HIT asid=%d addr=0x%"PRIx64" hit=%d miss=%d hit rate=%d" -smmu_iotlb_lookup_miss(uint16_t asid, uint64_t addr, uint32_t hit, uint32_t miss, uint32_t p) "IOTLB cache MISS asid=%d addr=0x%"PRIx64" hit=%d miss=%d hit rate=%d" -smmu_iotlb_insert(uint16_t asid, uint64_t addr, uint8_t tg, uint8_t level) "IOTLB ++ asid=%d addr=0x%"PRIx64" tg=%d level=%d" +smmu_iotlb_lookup_hit(uint16_t asid, uint16_t vmid, uint64_t addr, uint32_t hit, uint32_t miss, uint32_t p) "IOTLB cache HIT asid=%d vmid=%d addr=0x%"PRIx64" hit=%d miss=%d hit rate=%d" +smmu_iotlb_lookup_miss(uint16_t asid, uint16_t vmid, uint64_t addr, uint32_t hit, uint32_t miss, uint32_t p) "IOTLB cache MISS asid=%d vmid=%d addr=0x%"PRIx64" hit=%d miss=%d hit rate=%d" +smmu_iotlb_insert(uint16_t asid, uint16_t vmid, uint64_t addr, uint8_t tg, uint8_t level) "IOTLB ++ asid=%d vmid=%d addr=0x%"PRIx64" tg=%d level=%d" # smmuv3.c smmuv3_read_mmio(uint64_t addr, uint64_t val, unsigned size, uint32_t r) "addr: 0x%"PRIx64" val:0x%"PRIx64" size: 0x%x(%d)" diff --git a/include/hw/arm/smmu-common.h b/include/hw/arm/smmu-common.h index 4f1405d4e4..3cbb4998ad 100644 --- a/include/hw/arm/smmu-common.h +++ b/include/hw/arm/smmu-common.h @@ -125,6 +125,7 @@ typedef struct SMMUPciBus { typedef struct SMMUIOTLBKey { uint64_t iova; uint16_t asid; + uint16_t vmid; uint8_t tg; uint8_t level; } SMMUIOTLBKey; @@ -188,11 +189,11 @@ IOMMUMemoryRegion *smmu_iommu_mr(SMMUState *s, uint32_t sid); SMMUTLBEntry *smmu_iotlb_lookup(SMMUState *bs, SMMUTransCfg *cfg, SMMUTransTableInfo *tt, hwaddr iova); void smmu_iotlb_insert(SMMUState *bs, SMMUTransCfg *cfg, SMMUTLBEntry *entry); -SMMUIOTLBKey smmu_get_iotlb_key(uint16_t asid, uint64_t iova, +SMMUIOTLBKey smmu_get_iotlb_key(uint16_t asid, uint16_t vmid, uint64_t iova, uint8_t tg, uint8_t level); void smmu_iotlb_inv_all(SMMUState *s); void smmu_iotlb_inv_asid(SMMUState *s, uint16_t asid); -void smmu_iotlb_inv_iova(SMMUState *s, int asid, dma_addr_t iova, +void smmu_iotlb_inv_iova(SMMUState *s, int asid, int vmid, dma_addr_t iova, uint8_t tg, uint64_t num_pages, uint8_t ttl); /* Unmap the range of all the notifiers registered to any IOMMU mr */