Rebuild rocky8_10 with kernel-4.18.0-553.36.1.el8_10

.github/workflows/build-check_aarch64.yml

@@ -0,0 +1,34 @@
+name: aarch64 CI
+on:
+  pull_request:
+    branches:
+      - '**'
+      - '!mainline'
+
+jobs:
+  kernel-build-job:
+    runs-on:
+      labels: kernel-build-arm64
+    container:
+      image: rockylinux:8
+      env:
+        ROCKY_ENV: rocky8
+      ports:
+        - 80
+      options: --cpus 8
+    steps:
+      - name: Install tools and Libraries
+        run: |
+          dnf groupinstall 'Development Tools' -y
+          dnf install --enablerepo=devel bc dwarves kernel-devel openssl-devel elfutils-libelf-devel -y
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          ref: "${{ github.event.pull_request.head.sha }}"
+          fetch-depth: 0
+      - name: Build the Kernel
+        run: |
+          git config --global --add safe.directory /__w/kernel-src-tree/kernel-src-tree
+          cp configs/kernel-aarch64.config .config
+          make olddefconfig
+          make -j8

.github/workflows/build-check_x86_64.yml

@@ -0,0 +1,34 @@
+name: x86_64 CI
+on:
+  pull_request:
+    branches:
+      - '**'
+      - '!mainline'
+
+jobs:
+  kernel-build-job:
+    runs-on:
+      labels: kernel-build
+    container:
+      image: rockylinux:8
+      env:
+        ROCKY_ENV: rocky8
+      ports:
+        - 80
+      options: --cpus 8
+    steps:
+      - name: Install tools and Libraries
+        run: |
+          dnf groupinstall 'Development Tools' -y
+          dnf install --enablerepo=devel bc dwarves kernel-devel openssl-devel elfutils-libelf-devel -y
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          ref: "${{ github.event.pull_request.head.sha }}"
+          fetch-depth: 0
+      - name: Build the Kernel
+        run: |
+          git config --global --add safe.directory /__w/kernel-src-tree/kernel-src-tree
+          cp configs/kernel-x86_64.config .config
+          make olddefconfig
+          make -j8

Makefile.rhelver

@@ -12,7 +12,7 @@ RHEL_MINOR = 10
 #
 # Use this spot to avoid future merge conflicts.
 # Do not trim this comment.
-RHEL_RELEASE = 553.33.1
+RHEL_RELEASE = 553.36.1
 
 #
 # ZSTREAM

arch/x86/kernel/cpu/intel.c

@@ -391,6 +391,90 @@ int intel_microcode_sanity_check(void *mc, bool print_err, int hdr_type)
 }
 EXPORT_SYMBOL_GPL(intel_microcode_sanity_check);
 
+#define MSR_IA32_TME_ACTIVATE		0x982
+
+/* Helpers to access TME_ACTIVATE MSR */
+#define TME_ACTIVATE_LOCKED(x)		(x & 0x1)
+#define TME_ACTIVATE_ENABLED(x)		(x & 0x2)
+
+#define TME_ACTIVATE_POLICY(x)		((x >> 4) & 0xf)	/* Bits 7:4 */
+#define TME_ACTIVATE_POLICY_AES_XTS_128	0
+
+#define TME_ACTIVATE_KEYID_BITS(x)	((x >> 32) & 0xf)	/* Bits 35:32 */
+
+#define TME_ACTIVATE_CRYPTO_ALGS(x)	((x >> 48) & 0xffff)	/* Bits 63:48 */
+#define TME_ACTIVATE_CRYPTO_AES_XTS_128	1
+
+/* Values for mktme_status (SW only construct) */
+#define MKTME_ENABLED			0
+#define MKTME_DISABLED			1
+#define MKTME_UNINITIALIZED		2
+static int mktme_status = MKTME_UNINITIALIZED;
+
+static void detect_tme_early(struct cpuinfo_x86 *c)
+{
+	u64 tme_activate, tme_policy, tme_crypto_algs;
+	int keyid_bits = 0, nr_keyids = 0;
+	static u64 tme_activate_cpu0 = 0;
+
+	rdmsrl(MSR_IA32_TME_ACTIVATE, tme_activate);
+
+	if (mktme_status != MKTME_UNINITIALIZED) {
+		if (tme_activate != tme_activate_cpu0) {
+			/* Broken BIOS? */
+			pr_err_once("x86/tme: configuration is inconsistent between CPUs\n");
+			pr_err_once("x86/tme: MKTME is not usable\n");
+			mktme_status = MKTME_DISABLED;
+
+			/* Proceed. We may need to exclude bits from x86_phys_bits. */
+		}
+	} else {
+		tme_activate_cpu0 = tme_activate;
+	}
+
+	if (!TME_ACTIVATE_LOCKED(tme_activate) || !TME_ACTIVATE_ENABLED(tme_activate)) {
+		pr_info_once("x86/tme: not enabled by BIOS\n");
+		mktme_status = MKTME_DISABLED;
+		return;
+	}
+
+	if (mktme_status != MKTME_UNINITIALIZED)
+		goto detect_keyid_bits;
+
+	pr_info("x86/tme: enabled by BIOS\n");
+
+	tme_policy = TME_ACTIVATE_POLICY(tme_activate);
+	if (tme_policy != TME_ACTIVATE_POLICY_AES_XTS_128)
+		pr_warn("x86/tme: Unknown policy is active: %#llx\n", tme_policy);
+
+	tme_crypto_algs = TME_ACTIVATE_CRYPTO_ALGS(tme_activate);
+	if (!(tme_crypto_algs & TME_ACTIVATE_CRYPTO_AES_XTS_128)) {
+		pr_err("x86/mktme: No known encryption algorithm is supported: %#llx\n",
+				tme_crypto_algs);
+		mktme_status = MKTME_DISABLED;
+	}
+detect_keyid_bits:
+	keyid_bits = TME_ACTIVATE_KEYID_BITS(tme_activate);
+	nr_keyids = (1UL << keyid_bits) - 1;
+	if (nr_keyids) {
+		pr_info_once("x86/mktme: enabled by BIOS\n");
+		pr_info_once("x86/mktme: %d KeyIDs available\n", nr_keyids);
+	} else {
+		pr_info_once("x86/mktme: disabled by BIOS\n");
+	}
+
+	if (mktme_status == MKTME_UNINITIALIZED) {
+		/* MKTME is usable */
+		mktme_status = MKTME_ENABLED;
+	}
+
+	/*
+	 * KeyID bits effectively lower the number of physical address
+	 * bits.  Update cpuinfo_x86::x86_phys_bits accordingly.
+	 */
+	c->x86_phys_bits -= keyid_bits;
+}
+
 static void early_init_intel(struct cpuinfo_x86 *c)
 {
 	u64 misc_enable;
@@ -542,6 +626,13 @@ static void early_init_intel(struct cpuinfo_x86 *c)
 	 */
 	if (detect_extended_topology_early(c) < 0)
 		detect_ht_early(c);
+
+	/*
+	 * Adjust the number of physical bits early because it affects the
+	 * valid bits of the MTRR mask registers.
+	 */
+	if (cpu_has(c, X86_FEATURE_TME))
+		detect_tme_early(c);
 }
 
 static void bsp_init_intel(struct cpuinfo_x86 *c)
@@ -702,90 +793,6 @@ static void srat_detect_node(struct cpuinfo_x86 *c)
 #endif
 }
 
-#define MSR_IA32_TME_ACTIVATE		0x982
-
-/* Helpers to access TME_ACTIVATE MSR */
-#define TME_ACTIVATE_LOCKED(x)		(x & 0x1)
-#define TME_ACTIVATE_ENABLED(x)		(x & 0x2)
-
-#define TME_ACTIVATE_POLICY(x)		((x >> 4) & 0xf)	/* Bits 7:4 */
-#define TME_ACTIVATE_POLICY_AES_XTS_128	0
-
-#define TME_ACTIVATE_KEYID_BITS(x)	((x >> 32) & 0xf)	/* Bits 35:32 */
-
-#define TME_ACTIVATE_CRYPTO_ALGS(x)	((x >> 48) & 0xffff)	/* Bits 63:48 */
-#define TME_ACTIVATE_CRYPTO_AES_XTS_128	1
-
-/* Values for mktme_status (SW only construct) */
-#define MKTME_ENABLED			0
-#define MKTME_DISABLED			1
-#define MKTME_UNINITIALIZED		2
-static int mktme_status = MKTME_UNINITIALIZED;
-
-static void detect_tme(struct cpuinfo_x86 *c)
-{
-	u64 tme_activate, tme_policy, tme_crypto_algs;
-	int keyid_bits = 0, nr_keyids = 0;
-	static u64 tme_activate_cpu0 = 0;
-
-	rdmsrl(MSR_IA32_TME_ACTIVATE, tme_activate);
-
-	if (mktme_status != MKTME_UNINITIALIZED) {
-		if (tme_activate != tme_activate_cpu0) {
-			/* Broken BIOS? */
-			pr_err_once("x86/tme: configuration is inconsistent between CPUs\n");
-			pr_err_once("x86/tme: MKTME is not usable\n");
-			mktme_status = MKTME_DISABLED;
-
-			/* Proceed. We may need to exclude bits from x86_phys_bits. */
-		}
-	} else {
-		tme_activate_cpu0 = tme_activate;
-	}
-
-	if (!TME_ACTIVATE_LOCKED(tme_activate) || !TME_ACTIVATE_ENABLED(tme_activate)) {
-		pr_info_once("x86/tme: not enabled by BIOS\n");
-		mktme_status = MKTME_DISABLED;
-		return;
-	}
-
-	if (mktme_status != MKTME_UNINITIALIZED)
-		goto detect_keyid_bits;
-
-	pr_info("x86/tme: enabled by BIOS\n");
-
-	tme_policy = TME_ACTIVATE_POLICY(tme_activate);
-	if (tme_policy != TME_ACTIVATE_POLICY_AES_XTS_128)
-		pr_warn("x86/tme: Unknown policy is active: %#llx\n", tme_policy);
-
-	tme_crypto_algs = TME_ACTIVATE_CRYPTO_ALGS(tme_activate);
-	if (!(tme_crypto_algs & TME_ACTIVATE_CRYPTO_AES_XTS_128)) {
-		pr_err("x86/mktme: No known encryption algorithm is supported: %#llx\n",
-				tme_crypto_algs);
-		mktme_status = MKTME_DISABLED;
-	}
-detect_keyid_bits:
-	keyid_bits = TME_ACTIVATE_KEYID_BITS(tme_activate);
-	nr_keyids = (1UL << keyid_bits) - 1;
-	if (nr_keyids) {
-		pr_info_once("x86/mktme: enabled by BIOS\n");
-		pr_info_once("x86/mktme: %d KeyIDs available\n", nr_keyids);
-	} else {
-		pr_info_once("x86/mktme: disabled by BIOS\n");
-	}
-
-	if (mktme_status == MKTME_UNINITIALIZED) {
-		/* MKTME is usable */
-		mktme_status = MKTME_ENABLED;
-	}
-
-	/*
-	 * KeyID bits effectively lower the number of physical address
-	 * bits.  Update cpuinfo_x86::x86_phys_bits accordingly.
-	 */
-	c->x86_phys_bits -= keyid_bits;
-}
-
 static void init_cpuid_fault(struct cpuinfo_x86 *c)
 {
 	u64 msr;
@@ -922,9 +929,6 @@ static void init_intel(struct cpuinfo_x86 *c)
 
 	init_ia32_feat_ctl(c);
 
-	if (cpu_has(c, X86_FEATURE_TME))
-		detect_tme(c);
-
 	init_intel_misc_features(c);
 
 	split_lock_init();

arch/x86/kernel/cpu/mtrr/mtrr.c

@@ -767,6 +767,20 @@ void __init mtrr_bp_init(void)
 			if (mtrr_enabled())
 				mtrr_bp_pat_init();
 
+			/*
+			 * RHEL-only: Intel systems with TME feature enabled reduce
+			 * phys_addr by keyid_bits (see detect_tme_early()) but this does
+			 * not affect mtrr_cleanup() as phys_addr is calculated independently
+			 * here (see f6b980646b93 upstream). To make TME enabled systems boot
+			 * and to minimize the change for other environments, use
+			 * boot_cpu_data.x86_phys_bits here instead.
+			 */
+			if (boot_cpu_has(X86_FEATURE_TME)) {
+				phys_addr = boot_cpu_data.x86_phys_bits;
+				size_or_mask = SIZE_OR_MASK_BITS(phys_addr);
+				size_and_mask = ~size_or_mask & 0xfffff00000ULL;
+			}
+
 			if (mtrr_cleanup(phys_addr)) {
 				changed_by_mtrr_cleanup = 1;
 				mtrr_if->set_all();

arch/x86/kvm/svm/sev.c

@@ -1724,7 +1724,7 @@ static void sev_migrate_from(struct kvm *dst_kvm, struct kvm *src_kvm)
 		 * Note, the source is not required to have the same number of
 		 * vCPUs as the destination when migrating a vanilla SEV VM.
 		 */
-		src_vcpu = kvm_get_vcpu(dst_kvm, i);
+		src_vcpu = kvm_get_vcpu(src_kvm, i);
 		src_svm = to_svm(src_vcpu);
 
 		/*