Sync update

.mailmap

@@ -66,6 +66,11 @@ Alex Hung <alexhung@gmail.com> <alex.hung@canonical.com>
 Alex Shi <alexs@kernel.org> <alex.shi@intel.com>
 Alex Shi <alexs@kernel.org> <alex.shi@linaro.org>
 Alex Shi <alexs@kernel.org> <alex.shi@linux.alibaba.com>
+Alice Mikityanska <alice.kernel@fastmail.im> <maxtram95@gmail.com>
+Alice Mikityanska <alice.kernel@fastmail.im> <maximmi@mellanox.com>
+Alice Mikityanska <alice.kernel@fastmail.im> <maximmi@nvidia.com>
+Alice Mikityanska <alice.kernel@fastmail.im> <maxim@isovalent.com>
+Alice Mikityanska <alice.kernel@fastmail.im> <alice@isovalent.com>
 Aloka Dixit <quic_alokad@quicinc.com> <alokad@codeaurora.org>
 Al Viro <viro@ftp.linux.org.uk>
 Al Viro <viro@zenIV.linux.org.uk>
@@ -585,8 +590,6 @@ Mauro Carvalho Chehab <mchehab@kernel.org> <mchehab@osg.samsung.com>
 Mauro Carvalho Chehab <mchehab@kernel.org> <mchehab@redhat.com>
 Mauro Carvalho Chehab <mchehab@kernel.org> <m.chehab@samsung.com>
 Mauro Carvalho Chehab <mchehab@kernel.org> <mchehab@s-opensource.com>
-Maxim Mikityanskiy <maxtram95@gmail.com> <maximmi@mellanox.com>
-Maxim Mikityanskiy <maxtram95@gmail.com> <maximmi@nvidia.com>
 Maxime Ripard <mripard@kernel.org> <maxime@cerno.tech>
 Maxime Ripard <mripard@kernel.org> <maxime.ripard@bootlin.com>
 Maxime Ripard <mripard@kernel.org> <maxime.ripard@free-electrons.com>
@@ -595,8 +598,8 @@ Mayuresh Janorkar <mayur@ti.com>
 Md Sadre Alam <quic_mdalam@quicinc.com> <mdalam@codeaurora.org>
 Miaoqing Pan <quic_miaoqing@quicinc.com> <miaoqing@codeaurora.org>
 Michael Buesch <m@bues.ch>
-Michal Grzeschik <mgr@kernel.org> <m.grzeschik@pengutronix.de>
-Michal Grzeschik <mgr@kernel.org> <mgr@pengutronix.de>
+Michael Grzeschik <mgr@kernel.org> <m.grzeschik@pengutronix.de>
+Michael Grzeschik <mgr@kernel.org> <mgr@pengutronix.de>
 Michael Riesch <michael.riesch@collabora.com> <michael.riesch@wolfvision.net>
 Michal Simek <michal.simek@amd.com> <michal.simek@xilinx.com>
 Michel Dänzer <michel@tungstengraphics.com>

Documentation/netlink/specs/rt-link.yaml

@@ -1585,31 +1585,31 @@ attribute-sets:
         type: u32
       -
         name: mode
-        type: flag
+        type: u8
       -
         name: guard
-        type: flag
+        type: u8
       -
         name: protect
-        type: flag
+        type: u8
       -
         name: fast-leave
-        type: flag
+        type: u8
       -
         name: learning
-        type: flag
+        type: u8
       -
         name: unicast-flood
-        type: flag
+        type: u8
       -
         name: proxyarp
-        type: flag
+        type: u8
       -
         name: learning-sync
-        type: flag
+        type: u8
       -
         name: proxyarp-wifi
-        type: flag
+        type: u8
       -
         name: root-id
         type: binary
@@ -1656,34 +1656,34 @@ attribute-sets:
         type: pad
       -
         name: mcast-flood
-        type: flag
+        type: u8
       -
         name: mcast-to-ucast
-        type: flag
+        type: u8
       -
         name: vlan-tunnel
-        type: flag
+        type: u8
       -
         name: bcast-flood
-        type: flag
+        type: u8
       -
         name: group-fwd-mask
         type: u16
       -
         name: neigh-suppress
-        type: flag
+        type: u8
       -
         name: isolated
-        type: flag
+        type: u8
       -
         name: backup-port
         type: u32
       -
         name: mrp-ring-open
-        type: flag
+        type: u8
       -
         name: mrp-in-open
-        type: flag
+        type: u8
       -
         name: mcast-eht-hosts-limit
         type: u32
@@ -1692,10 +1692,10 @@ attribute-sets:
         type: u32
       -
         name: locked
-        type: flag
+        type: u8
       -
         name: mab
-        type: flag
+        type: u8
       -
         name: mcast-n-groups
         type: u32
@@ -1704,7 +1704,7 @@ attribute-sets:
         type: u32
       -
         name: neigh-vlan-suppress
-        type: flag
+        type: u8
       -
         name: backup-nhid
         type: u32

Documentation/watchdog/watchdog-parameters.rst

@@ -59,7 +59,7 @@ advantechwdt:
 
 alim1535_wdt:
     timeout:
-	Watchdog timeout in seconds. (0 < timeout < 18000, default=60
+	Watchdog timeout in seconds. (0 < timeout < 18000, default=60)
     nowayout:
 	Watchdog cannot be stopped once started
 	(default=kernel config parameter)
@@ -68,7 +68,7 @@ alim1535_wdt:
 
 alim7101_wdt:
     timeout:
-	Watchdog timeout in seconds. (1<=timeout<=3600, default=30
+	Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
     use_gpio:
 	Use the gpio watchdog (required by old cobalt boards).
 	default=0/off/no

MAINTAINERS

@@ -6478,7 +6478,7 @@ L:	linux-cifs@vger.kernel.org
 L:	samba-technical@lists.samba.org (moderated for non-subscribers)
 S:	Supported
 W:	https://wiki.samba.org/index.php/LinuxCIFS
-T:	git https://git.samba.org/sfrench/cifs-2.6.git
+T:	git https://git.samba.org/sfrench/cifs-2.6.git for-next
 F:	Documentation/admin-guide/cifs/
 F:	fs/smb/client/
 F:	fs/smb/common/
@@ -14142,7 +14142,7 @@ R:	Sergey Senozhatsky <senozhatsky@chromium.org>
 R:	Tom Talpey <tom@talpey.com>
 L:	linux-cifs@vger.kernel.org
 S:	Maintained
-T:	git https://git.samba.org/ksmbd.git
+T:	git https://git.samba.org/ksmbd.git ksmbd-for-next
 F:	Documentation/filesystems/smb/ksmbd.rst
 F:	fs/smb/common/
 F:	fs/smb/server/
@@ -19109,6 +19109,7 @@ F:	drivers/nfc/
 F:	include/net/nfc/
 F:	include/uapi/linux/nfc.h
 F:	net/nfc/
+F:	tools/testing/selftests/nci/
 
 NFC VIRTUAL NCI DEVICE DRIVER
 M:	Bongsu Jeon <bongsu.jeon@samsung.com>
@@ -25973,8 +25974,9 @@ F:	Documentation/devicetree/bindings/phy/st,stm32mp25-combophy.yaml
 F:	drivers/phy/st/phy-stm32-combophy.c
 
 STMMAC ETHERNET DRIVER
+M:	Maxime Chevallier <maxime.chevallier@bootlin.com>
 L:	netdev@vger.kernel.org
-S:	Orphan
+S:	Maintained
 F:	Documentation/networking/device_drivers/ethernet/stmicro/
 F:	drivers/net/ethernet/stmicro/stmmac/
 
@@ -27930,7 +27932,6 @@ F:	drivers/usb/isp1760/*
 
 USB LAN78XX ETHERNET DRIVER
 M:	Thangaraj Samynathan <Thangaraj.S@microchip.com>
-M:	Rengarajan Sundararajan <Rengarajan.S@microchip.com>
 M:	UNGLinuxDriver@microchip.com
 L:	netdev@vger.kernel.org
 S:	Maintained

arch/riscv/include/asm/kvm_host.h

@@ -209,13 +209,13 @@ struct kvm_vcpu_arch {
 	/*
 	 * VCPU interrupts
 	 *
-	 * We have a lockless approach for tracking pending VCPU interrupts
-	 * implemented using atomic bitops. The irqs_pending bitmap represent
-	 * pending interrupts whereas irqs_pending_mask represent bits changed
-	 * in irqs_pending. Our approach is modeled around multiple producer
-	 * and single consumer problem where the consumer is the VCPU itself.
+	 * The irqs_pending bitmap represents pending interrupts whereas
+	 * irqs_pending_mask represents bits changed in irqs_pending. Updates
+	 * to these bitmaps are serialized so vcpu interrupt sync/flush cannot
+	 * drop a newly injected interrupt while syncing guest-visible HVIP.
 	 */
 #define KVM_RISCV_VCPU_NR_IRQS	64
+	raw_spinlock_t irqs_pending_lock;
 	DECLARE_BITMAP(irqs_pending, KVM_RISCV_VCPU_NR_IRQS);
 	DECLARE_BITMAP(irqs_pending_mask, KVM_RISCV_VCPU_NR_IRQS);
 

arch/riscv/kvm/aia.c

@@ -53,12 +53,15 @@ void kvm_riscv_vcpu_aia_flush_interrupts(struct kvm_vcpu *vcpu)
 	struct kvm_vcpu_aia_csr *csr = &vcpu->arch.aia_context.guest_csr;
 	unsigned long mask, val;
 
+	lockdep_assert_held(&vcpu->arch.irqs_pending_lock);
+
 	if (!kvm_riscv_aia_available())
 		return;
 
-	if (READ_ONCE(vcpu->arch.irqs_pending_mask[1])) {
-		mask = xchg_acquire(&vcpu->arch.irqs_pending_mask[1], 0);
-		val = READ_ONCE(vcpu->arch.irqs_pending[1]) & mask;
+	mask = vcpu->arch.irqs_pending_mask[1];
+	if (mask) {
+		vcpu->arch.irqs_pending_mask[1] = 0;
+		val = vcpu->arch.irqs_pending[1] & mask;
 
 		csr->hviph &= ~mask;
 		csr->hviph |= val;
@@ -69,6 +72,8 @@ void kvm_riscv_vcpu_aia_sync_interrupts(struct kvm_vcpu *vcpu)
 {
 	struct kvm_vcpu_aia_csr *csr = &vcpu->arch.aia_context.guest_csr;
 
+	lockdep_assert_held(&vcpu->arch.irqs_pending_lock);
+
 	if (kvm_riscv_aia_available())
 		csr->vsieh = ncsr_read(CSR_VSIEH);
 }
@@ -77,13 +82,22 @@ void kvm_riscv_vcpu_aia_sync_interrupts(struct kvm_vcpu *vcpu)
 bool kvm_riscv_vcpu_aia_has_interrupts(struct kvm_vcpu *vcpu, u64 mask)
 {
 	unsigned long seip;
+#ifdef CONFIG_32BIT
+	unsigned long flags;
+	bool pending;
+#endif
 
 	if (!kvm_riscv_aia_available())
 		return false;
 
 #ifdef CONFIG_32BIT
-	if (READ_ONCE(vcpu->arch.irqs_pending[1]) &
-	    (vcpu->arch.aia_context.guest_csr.vsieh & upper_32_bits(mask)))
+	raw_spin_lock_irqsave(&vcpu->arch.irqs_pending_lock, flags);
+	pending = vcpu->arch.irqs_pending[1] &
+		  (vcpu->arch.aia_context.guest_csr.vsieh &
+		   upper_32_bits(mask));
+	raw_spin_unlock_irqrestore(&vcpu->arch.irqs_pending_lock, flags);
+
+	if (pending)
 		return true;
 #endif
 
@@ -207,6 +221,9 @@ int kvm_riscv_vcpu_aia_set_csr(struct kvm_vcpu *vcpu,
 {
 	struct kvm_vcpu_aia_csr *csr = &vcpu->arch.aia_context.guest_csr;
 	unsigned long regs_max = sizeof(struct kvm_riscv_aia_csr) / sizeof(unsigned long);
+#ifdef CONFIG_32BIT
+	unsigned long flags;
+#endif
 
 	if (!riscv_isa_extension_available(vcpu->arch.isa, SSAIA))
 		return -ENOENT;
@@ -219,8 +236,12 @@ int kvm_riscv_vcpu_aia_set_csr(struct kvm_vcpu *vcpu,
 		((unsigned long *)csr)[reg_num] = val;
 
 #ifdef CONFIG_32BIT
-		if (reg_num == KVM_REG_RISCV_CSR_AIA_REG(siph))
-			WRITE_ONCE(vcpu->arch.irqs_pending_mask[1], 0);
+		if (reg_num == KVM_REG_RISCV_CSR_AIA_REG(siph)) {
+			raw_spin_lock_irqsave(&vcpu->arch.irqs_pending_lock, flags);
+			vcpu->arch.irqs_pending_mask[1] = 0;
+			raw_spin_unlock_irqrestore(&vcpu->arch.irqs_pending_lock,
+						   flags);
+		}
 #endif
 	}
 

arch/riscv/kvm/gstage.c

@@ -5,11 +5,13 @@
  */
 
 #include <linux/bitops.h>
+#include <linux/cpufeature.h>
 #include <linux/errno.h>
 #include <linux/kvm_host.h>
 #include <linux/module.h>
 #include <linux/pgtable.h>
 #include <asm/kvm_gstage.h>
+#include <asm/hwcap.h>
 
 #ifdef CONFIG_64BIT
 unsigned long kvm_riscv_gstage_max_pgd_levels __ro_after_init = 3;
@@ -171,8 +173,10 @@ int kvm_riscv_gstage_set_pte(struct kvm_gstage *gstage,
 	}
 
 	if (pte_val(*ptep) != pte_val(map->pte)) {
+		bool was_invalid = !pte_val(*ptep);
 		set_pte(ptep, map->pte);
-		if (gstage_pte_leaf(ptep))
+		if (gstage_pte_leaf(ptep) &&
+		    !(was_invalid && riscv_has_extension_unlikely(RISCV_ISA_EXT_SVVPTC)))
 			gstage_tlb_flush(gstage, current_level, map->addr);
 	}
 

arch/riscv/kvm/mmu.c

@@ -41,6 +41,7 @@ int kvm_riscv_mmu_ioremap(struct kvm *kvm, gpa_t gpa, phys_addr_t hpa,
 	pgprot_t prot;
 	unsigned long pfn;
 	phys_addr_t addr, end;
+	unsigned long pgd_levels = kvm->arch.pgd_levels;
 	struct kvm_mmu_memory_cache pcache = {
 		.gfp_custom = (in_atomic) ? GFP_ATOMIC | __GFP_ACCOUNT : 0,
 		.gfp_zero = __GFP_ZERO,
@@ -63,7 +64,7 @@ int kvm_riscv_mmu_ioremap(struct kvm *kvm, gpa_t gpa, phys_addr_t hpa,
 		if (!writable)
 			map.pte = pte_wrprotect(map.pte);
 
-		ret = kvm_mmu_topup_memory_cache(&pcache, kvm->arch.pgd_levels);
+		ret = __kvm_mmu_topup_memory_cache(&pcache, pgd_levels, pgd_levels);
 		if (ret)
 			goto out;