* [PATCH V2 1/2] linux headers: update against Linux 5.4-rc2
2019-10-15 14:36 [PATCH V2 0/2] target/i386/kvm: Add Hyper-V direct tlb flush support lantianyu1986
@ 2019-10-15 14:36 ` lantianyu1986
2019-10-15 14:36 ` [PATCH V2 2/2] target/i386/kvm: Add Hyper-V direct tlb flush support lantianyu1986
1 sibling, 0 replies; 4+ messages in thread
From: lantianyu1986 @ 2019-10-15 14:36 UTC (permalink / raw)
To: mst, cohuck, pbonzini, rth, ehabkost, mtosatti, vkuznets, rkagan
Cc: Tianyu Lan, qemu-devel, kvm
From: Tianyu Lan <Tianyu.Lan@microsoft.com>
commit da0c9ea146cbe92b832f1b0f694840ea8eb33cce
Signed-off-by: Tianyu Lan <Tianyu.Lan@microsoft.com>
---
include/standard-headers/asm-x86/bootparam.h | 2 +
include/standard-headers/asm-x86/kvm_para.h | 1 +
include/standard-headers/linux/ethtool.h | 24 ++++++++++
include/standard-headers/linux/pci_regs.h | 19 +++++++-
include/standard-headers/linux/virtio_ids.h | 2 +
include/standard-headers/linux/virtio_pmem.h | 6 +--
| 16 ++++++-
| 2 +
| 21 +++++++-
| 18 ++++---
| 10 ++--
| 10 +++-
| 3 ++
| 2 +
| 2 +
| 2 +
| 6 +--
| 2 +
| 2 +
| 6 +++
| 2 +
| 2 +
| 28 ++++++++---
| 2 +-
| 2 +
| 2 +
| 2 +
| 12 ++++-
| 5 +-
| 71 ++++++++++++++++++++--------
30 files changed, 225 insertions(+), 59 deletions(-)
diff --git a/include/standard-headers/asm-x86/bootparam.h b/include/standard-headers/asm-x86/bootparam.h
index 67d4f0119f..a6f7cf535e 100644
--- a/include/standard-headers/asm-x86/bootparam.h
+++ b/include/standard-headers/asm-x86/bootparam.h
@@ -29,6 +29,8 @@
#define XLF_EFI_HANDOVER_32 (1<<2)
#define XLF_EFI_HANDOVER_64 (1<<3)
#define XLF_EFI_KEXEC (1<<4)
+#define XLF_5LEVEL (1<<5)
+#define XLF_5LEVEL_ENABLED (1<<6)
#endif /* _ASM_X86_BOOTPARAM_H */
diff --git a/include/standard-headers/asm-x86/kvm_para.h b/include/standard-headers/asm-x86/kvm_para.h
index e1715143fd..90604a8fb7 100644
--- a/include/standard-headers/asm-x86/kvm_para.h
+++ b/include/standard-headers/asm-x86/kvm_para.h
@@ -30,6 +30,7 @@
#define KVM_FEATURE_ASYNC_PF_VMEXIT 10
#define KVM_FEATURE_PV_SEND_IPI 11
#define KVM_FEATURE_POLL_CONTROL 12
+#define KVM_FEATURE_PV_SCHED_YIELD 13
#define KVM_HINTS_REALTIME 0
diff --git a/include/standard-headers/linux/ethtool.h b/include/standard-headers/linux/ethtool.h
index 9b9919a8f6..4ff422b635 100644
--- a/include/standard-headers/linux/ethtool.h
+++ b/include/standard-headers/linux/ethtool.h
@@ -259,10 +259,32 @@ struct ethtool_tunable {
#define ETHTOOL_PHY_FAST_LINK_DOWN_ON 0
#define ETHTOOL_PHY_FAST_LINK_DOWN_OFF 0xff
+/* Energy Detect Power Down (EDPD) is a feature supported by some PHYs, where
+ * the PHY's RX & TX blocks are put into a low-power mode when there is no
+ * link detected (typically cable is un-plugged). For RX, only a minimal
+ * link-detection is available, and for TX the PHY wakes up to send link pulses
+ * to avoid any lock-ups in case the peer PHY may also be running in EDPD mode.
+ *
+ * Some PHYs may support configuration of the wake-up interval for TX pulses,
+ * and some PHYs may support only disabling TX pulses entirely. For the latter
+ * a special value is required (ETHTOOL_PHY_EDPD_NO_TX) so that this can be
+ * configured from userspace (should the user want it).
+ *
+ * The interval units for TX wake-up are in milliseconds, since this should
+ * cover a reasonable range of intervals:
+ * - from 1 millisecond, which does not sound like much of a power-saver
+ * - to ~65 seconds which is quite a lot to wait for a link to come up when
+ * plugging a cable
+ */
+#define ETHTOOL_PHY_EDPD_DFLT_TX_MSECS 0xffff
+#define ETHTOOL_PHY_EDPD_NO_TX 0xfffe
+#define ETHTOOL_PHY_EDPD_DISABLE 0
+
enum phy_tunable_id {
ETHTOOL_PHY_ID_UNSPEC,
ETHTOOL_PHY_DOWNSHIFT,
ETHTOOL_PHY_FAST_LINK_DOWN,
+ ETHTOOL_PHY_EDPD,
/*
* Add your fresh new phy tunable attribute above and remember to update
* phy_tunable_strings[] in net/core/ethtool.c
@@ -1483,6 +1505,8 @@ enum ethtool_link_mode_bit_indices {
ETHTOOL_LINK_MODE_200000baseLR4_ER4_FR4_Full_BIT = 64,
ETHTOOL_LINK_MODE_200000baseDR4_Full_BIT = 65,
ETHTOOL_LINK_MODE_200000baseCR4_Full_BIT = 66,
+ ETHTOOL_LINK_MODE_100baseT1_Full_BIT = 67,
+ ETHTOOL_LINK_MODE_1000baseT1_Full_BIT = 68,
/* must be last entry */
__ETHTOOL_LINK_MODE_MASK_NBITS
diff --git a/include/standard-headers/linux/pci_regs.h b/include/standard-headers/linux/pci_regs.h
index 27164769d1..29d6e93fd1 100644
--- a/include/standard-headers/linux/pci_regs.h
+++ b/include/standard-headers/linux/pci_regs.h
@@ -528,6 +528,7 @@
#define PCI_EXP_LNKCAP_SLS_5_0GB 0x00000002 /* LNKCAP2 SLS Vector bit 1 */
#define PCI_EXP_LNKCAP_SLS_8_0GB 0x00000003 /* LNKCAP2 SLS Vector bit 2 */
#define PCI_EXP_LNKCAP_SLS_16_0GB 0x00000004 /* LNKCAP2 SLS Vector bit 3 */
+#define PCI_EXP_LNKCAP_SLS_32_0GB 0x00000005 /* LNKCAP2 SLS Vector bit 4 */
#define PCI_EXP_LNKCAP_MLW 0x000003f0 /* Maximum Link Width */
#define PCI_EXP_LNKCAP_ASPMS 0x00000c00 /* ASPM Support */
#define PCI_EXP_LNKCAP_L0SEL 0x00007000 /* L0s Exit Latency */
@@ -556,6 +557,7 @@
#define PCI_EXP_LNKSTA_CLS_5_0GB 0x0002 /* Current Link Speed 5.0GT/s */
#define PCI_EXP_LNKSTA_CLS_8_0GB 0x0003 /* Current Link Speed 8.0GT/s */
#define PCI_EXP_LNKSTA_CLS_16_0GB 0x0004 /* Current Link Speed 16.0GT/s */
+#define PCI_EXP_LNKSTA_CLS_32_0GB 0x0005 /* Current Link Speed 32.0GT/s */
#define PCI_EXP_LNKSTA_NLW 0x03f0 /* Negotiated Link Width */
#define PCI_EXP_LNKSTA_NLW_X1 0x0010 /* Current Link Width x1 */
#define PCI_EXP_LNKSTA_NLW_X2 0x0020 /* Current Link Width x2 */
@@ -589,6 +591,7 @@
#define PCI_EXP_SLTCTL_CCIE 0x0010 /* Command Completed Interrupt Enable */
#define PCI_EXP_SLTCTL_HPIE 0x0020 /* Hot-Plug Interrupt Enable */
#define PCI_EXP_SLTCTL_AIC 0x00c0 /* Attention Indicator Control */
+#define PCI_EXP_SLTCTL_ATTN_IND_SHIFT 6 /* Attention Indicator shift */
#define PCI_EXP_SLTCTL_ATTN_IND_ON 0x0040 /* Attention Indicator on */
#define PCI_EXP_SLTCTL_ATTN_IND_BLINK 0x0080 /* Attention Indicator blinking */
#define PCI_EXP_SLTCTL_ATTN_IND_OFF 0x00c0 /* Attention Indicator off */
@@ -661,6 +664,7 @@
#define PCI_EXP_LNKCAP2_SLS_5_0GB 0x00000004 /* Supported Speed 5GT/s */
#define PCI_EXP_LNKCAP2_SLS_8_0GB 0x00000008 /* Supported Speed 8GT/s */
#define PCI_EXP_LNKCAP2_SLS_16_0GB 0x00000010 /* Supported Speed 16GT/s */
+#define PCI_EXP_LNKCAP2_SLS_32_0GB 0x00000020 /* Supported Speed 32GT/s */
#define PCI_EXP_LNKCAP2_CROSSLINK 0x00000100 /* Crosslink supported */
#define PCI_EXP_LNKCTL2 48 /* Link Control 2 */
#define PCI_EXP_LNKCTL2_TLS 0x000f
@@ -668,6 +672,7 @@
#define PCI_EXP_LNKCTL2_TLS_5_0GT 0x0002 /* Supported Speed 5GT/s */
#define PCI_EXP_LNKCTL2_TLS_8_0GT 0x0003 /* Supported Speed 8GT/s */
#define PCI_EXP_LNKCTL2_TLS_16_0GT 0x0004 /* Supported Speed 16GT/s */
+#define PCI_EXP_LNKCTL2_TLS_32_0GT 0x0005 /* Supported Speed 32GT/s */
#define PCI_EXP_LNKSTA2 50 /* Link Status 2 */
#define PCI_CAP_EXP_ENDPOINT_SIZEOF_V2 52 /* v2 endpoints with link end here */
#define PCI_EXP_SLTCAP2 52 /* Slot Capabilities 2 */
@@ -709,7 +714,9 @@
#define PCI_EXT_CAP_ID_DPC 0x1D /* Downstream Port Containment */
#define PCI_EXT_CAP_ID_L1SS 0x1E /* L1 PM Substates */
#define PCI_EXT_CAP_ID_PTM 0x1F /* Precision Time Measurement */
-#define PCI_EXT_CAP_ID_MAX PCI_EXT_CAP_ID_PTM
+#define PCI_EXT_CAP_ID_DLF 0x25 /* Data Link Feature */
+#define PCI_EXT_CAP_ID_PL_16GT 0x26 /* Physical Layer 16.0 GT/s */
+#define PCI_EXT_CAP_ID_MAX PCI_EXT_CAP_ID_PL_16GT
#define PCI_EXT_CAP_DSN_SIZEOF 12
#define PCI_EXT_CAP_MCAST_ENDPOINT_SIZEOF 40
@@ -1049,4 +1056,14 @@
#define PCI_L1SS_CTL1_LTR_L12_TH_SCALE 0xe0000000 /* LTR_L1.2_THRESHOLD_Scale */
#define PCI_L1SS_CTL2 0x0c /* Control 2 Register */
+/* Data Link Feature */
+#define PCI_DLF_CAP 0x04 /* Capabilities Register */
+#define PCI_DLF_EXCHANGE_ENABLE 0x80000000 /* Data Link Feature Exchange Enable */
+
+/* Physical Layer 16.0 GT/s */
+#define PCI_PL_16GT_LE_CTRL 0x20 /* Lane Equalization Control Register */
+#define PCI_PL_16GT_LE_CTRL_DSP_TX_PRESET_MASK 0x0000000F
+#define PCI_PL_16GT_LE_CTRL_USP_TX_PRESET_MASK 0x000000F0
+#define PCI_PL_16GT_LE_CTRL_USP_TX_PRESET_SHIFT 4
+
#endif /* LINUX_PCI_REGS_H */
diff --git a/include/standard-headers/linux/virtio_ids.h b/include/standard-headers/linux/virtio_ids.h
index 32b2f94d1f..585e07b273 100644
--- a/include/standard-headers/linux/virtio_ids.h
+++ b/include/standard-headers/linux/virtio_ids.h
@@ -43,6 +43,8 @@
#define VIRTIO_ID_INPUT 18 /* virtio input */
#define VIRTIO_ID_VSOCK 19 /* virtio vsock transport */
#define VIRTIO_ID_CRYPTO 20 /* virtio crypto */
+#define VIRTIO_ID_IOMMU 23 /* virtio IOMMU */
+#define VIRTIO_ID_FS 26 /* virtio filesystem */
#define VIRTIO_ID_PMEM 27 /* virtio pmem */
#endif /* _LINUX_VIRTIO_IDS_H */
diff --git a/include/standard-headers/linux/virtio_pmem.h b/include/standard-headers/linux/virtio_pmem.h
index 7e3d43b121..fc029de798 100644
--- a/include/standard-headers/linux/virtio_pmem.h
+++ b/include/standard-headers/linux/virtio_pmem.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
+/* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause */
/*
* Definitions for virtio-pmem devices.
*
@@ -7,8 +7,8 @@
* Author(s): Pankaj Gupta <pagupta@redhat.com>
*/
-#ifndef _UAPI_LINUX_VIRTIO_PMEM_H
-#define _UAPI_LINUX_VIRTIO_PMEM_H
+#ifndef _LINUX_VIRTIO_PMEM_H
+#define _LINUX_VIRTIO_PMEM_H
#include "standard-headers/linux/types.h"
#include "standard-headers/linux/virtio_ids.h"
--git a/linux-headers/asm-arm/kvm.h b/linux-headers/asm-arm/kvm.h
index e1f8b74558..9d379d3372 100644
--- a/linux-headers/asm-arm/kvm.h
+++ b/linux-headers/asm-arm/kvm.h
@@ -214,6 +214,18 @@ struct kvm_vcpu_events {
#define KVM_REG_ARM_FW_REG(r) (KVM_REG_ARM | KVM_REG_SIZE_U64 | \
KVM_REG_ARM_FW | ((r) & 0xffff))
#define KVM_REG_ARM_PSCI_VERSION KVM_REG_ARM_FW_REG(0)
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1 KVM_REG_ARM_FW_REG(1)
+ /* Higher values mean better protection. */
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_NOT_AVAIL 0
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_AVAIL 1
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_NOT_REQUIRED 2
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2 KVM_REG_ARM_FW_REG(2)
+ /* Higher values mean better protection. */
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_NOT_AVAIL 0
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_UNKNOWN 1
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_AVAIL 2
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_NOT_REQUIRED 3
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_ENABLED (1U << 4)
/* Device Control API: ARM VGIC */
#define KVM_DEV_ARM_VGIC_GRP_ADDR 0
@@ -254,8 +266,10 @@ struct kvm_vcpu_events {
#define KVM_DEV_ARM_ITS_CTRL_RESET 4
/* KVM_IRQ_LINE irq field index values */
+#define KVM_ARM_IRQ_VCPU2_SHIFT 28
+#define KVM_ARM_IRQ_VCPU2_MASK 0xf
#define KVM_ARM_IRQ_TYPE_SHIFT 24
-#define KVM_ARM_IRQ_TYPE_MASK 0xff
+#define KVM_ARM_IRQ_TYPE_MASK 0xf
#define KVM_ARM_IRQ_VCPU_SHIFT 16
#define KVM_ARM_IRQ_VCPU_MASK 0xff
#define KVM_ARM_IRQ_NUM_SHIFT 0
--git a/linux-headers/asm-arm/unistd-common.h b/linux-headers/asm-arm/unistd-common.h
index 27a9b6da27..eb5d361b11 100644
--- a/linux-headers/asm-arm/unistd-common.h
+++ b/linux-headers/asm-arm/unistd-common.h
@@ -388,5 +388,7 @@
#define __NR_fsconfig (__NR_SYSCALL_BASE + 431)
#define __NR_fsmount (__NR_SYSCALL_BASE + 432)
#define __NR_fspick (__NR_SYSCALL_BASE + 433)
+#define __NR_pidfd_open (__NR_SYSCALL_BASE + 434)
+#define __NR_clone3 (__NR_SYSCALL_BASE + 435)
#endif /* _ASM_ARM_UNISTD_COMMON_H */
--git a/linux-headers/asm-arm64/kvm.h b/linux-headers/asm-arm64/kvm.h
index 2431ec35a9..0ce6e49f3a 100644
--- a/linux-headers/asm-arm64/kvm.h
+++ b/linux-headers/asm-arm64/kvm.h
@@ -229,6 +229,16 @@ struct kvm_vcpu_events {
#define KVM_REG_ARM_FW_REG(r) (KVM_REG_ARM64 | KVM_REG_SIZE_U64 | \
KVM_REG_ARM_FW | ((r) & 0xffff))
#define KVM_REG_ARM_PSCI_VERSION KVM_REG_ARM_FW_REG(0)
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1 KVM_REG_ARM_FW_REG(1)
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_NOT_AVAIL 0
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_AVAIL 1
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_NOT_REQUIRED 2
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2 KVM_REG_ARM_FW_REG(2)
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_NOT_AVAIL 0
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_UNKNOWN 1
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_AVAIL 2
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_NOT_REQUIRED 3
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_ENABLED (1U << 4)
/* SVE registers */
#define KVM_REG_ARM64_SVE (0x15 << KVM_REG_ARM_COPROC_SHIFT)
@@ -260,6 +270,13 @@ struct kvm_vcpu_events {
KVM_REG_SIZE_U256 | \
((i) & (KVM_ARM64_SVE_MAX_SLICES - 1)))
+/*
+ * Register values for KVM_REG_ARM64_SVE_ZREG(), KVM_REG_ARM64_SVE_PREG() and
+ * KVM_REG_ARM64_SVE_FFR() are represented in memory in an endianness-
+ * invariant layout which differs from the layout used for the FPSIMD
+ * V-registers on big-endian systems: see sigcontext.h for more explanation.
+ */
+
#define KVM_ARM64_SVE_VQ_MIN __SVE_VQ_MIN
#define KVM_ARM64_SVE_VQ_MAX __SVE_VQ_MAX
@@ -308,8 +325,10 @@ struct kvm_vcpu_events {
#define KVM_ARM_VCPU_TIMER_IRQ_PTIMER 1
/* KVM_IRQ_LINE irq field index values */
+#define KVM_ARM_IRQ_VCPU2_SHIFT 28
+#define KVM_ARM_IRQ_VCPU2_MASK 0xf
#define KVM_ARM_IRQ_TYPE_SHIFT 24
-#define KVM_ARM_IRQ_TYPE_MASK 0xff
+#define KVM_ARM_IRQ_TYPE_MASK 0xf
#define KVM_ARM_IRQ_VCPU_SHIFT 16
#define KVM_ARM_IRQ_VCPU_MASK 0xff
#define KVM_ARM_IRQ_NUM_SHIFT 0
--git a/linux-headers/asm-generic/mman-common.h b/linux-headers/asm-generic/mman-common.h
index abd238d0f7..c160a5354e 100644
--- a/linux-headers/asm-generic/mman-common.h
+++ b/linux-headers/asm-generic/mman-common.h
@@ -19,15 +19,18 @@
#define MAP_TYPE 0x0f /* Mask for type of mapping */
#define MAP_FIXED 0x10 /* Interpret addr exactly */
#define MAP_ANONYMOUS 0x20 /* don't use a file */
-#ifdef CONFIG_MMAP_ALLOW_UNINITIALIZED
-# define MAP_UNINITIALIZED 0x4000000 /* For anonymous mmap, memory could be uninitialized */
-#else
-# define MAP_UNINITIALIZED 0x0 /* Don't support this flag */
-#endif
-/* 0x0100 - 0x80000 flags are defined in asm-generic/mman.h */
+/* 0x0100 - 0x4000 flags are defined in asm-generic/mman.h */
+#define MAP_POPULATE 0x008000 /* populate (prefault) pagetables */
+#define MAP_NONBLOCK 0x010000 /* do not block on IO */
+#define MAP_STACK 0x020000 /* give out an address that is best suited for process/thread stacks */
+#define MAP_HUGETLB 0x040000 /* create a huge page mapping */
+#define MAP_SYNC 0x080000 /* perform synchronous page faults for the mapping */
#define MAP_FIXED_NOREPLACE 0x100000 /* MAP_FIXED which doesn't unmap underlying mapping */
+#define MAP_UNINITIALIZED 0x4000000 /* For anonymous mmap, memory could be
+ * uninitialized */
+
/*
* Flags for mlock
*/
@@ -64,6 +67,9 @@
#define MADV_WIPEONFORK 18 /* Zero memory on fork, child only */
#define MADV_KEEPONFORK 19 /* Undo MADV_WIPEONFORK */
+#define MADV_COLD 20 /* deactivate these pages */
+#define MADV_PAGEOUT 21 /* reclaim these pages */
+
/* compatibility flags */
#define MAP_FILE 0
--git a/linux-headers/asm-generic/mman.h b/linux-headers/asm-generic/mman.h
index 653687d977..57e8195d0b 100644
--- a/linux-headers/asm-generic/mman.h
+++ b/linux-headers/asm-generic/mman.h
@@ -9,13 +9,11 @@
#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */
#define MAP_LOCKED 0x2000 /* pages are locked */
#define MAP_NORESERVE 0x4000 /* don't check for reservations */
-#define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */
-#define MAP_NONBLOCK 0x10000 /* do not block on IO */
-#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */
-#define MAP_HUGETLB 0x40000 /* create a huge page mapping */
-#define MAP_SYNC 0x80000 /* perform synchronous page faults for the mapping */
-/* Bits [26:31] are reserved, see mman-common.h for MAP_HUGETLB usage */
+/*
+ * Bits [26:31] are reserved, see asm-generic/hugetlb_encode.h
+ * for MAP_HUGETLB usage
+ */
#define MCL_CURRENT 1 /* lock all current mappings */
#define MCL_FUTURE 2 /* lock all future mappings */
--git a/linux-headers/asm-generic/unistd.h b/linux-headers/asm-generic/unistd.h
index a87904daf1..1fc8faa6e9 100644
--- a/linux-headers/asm-generic/unistd.h
+++ b/linux-headers/asm-generic/unistd.h
@@ -569,7 +569,7 @@ __SYSCALL(__NR_semget, sys_semget)
__SC_COMP(__NR_semctl, sys_semctl, compat_sys_semctl)
#if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32
#define __NR_semtimedop 192
-__SC_COMP(__NR_semtimedop, sys_semtimedop, sys_semtimedop_time32)
+__SC_3264(__NR_semtimedop, sys_semtimedop_time32, sys_semtimedop)
#endif
#define __NR_semop 193
__SYSCALL(__NR_semop, sys_semop)
@@ -844,9 +844,15 @@ __SYSCALL(__NR_fsconfig, sys_fsconfig)
__SYSCALL(__NR_fsmount, sys_fsmount)
#define __NR_fspick 433
__SYSCALL(__NR_fspick, sys_fspick)
+#define __NR_pidfd_open 434
+__SYSCALL(__NR_pidfd_open, sys_pidfd_open)
+#ifdef __ARCH_WANT_SYS_CLONE3
+#define __NR_clone3 435
+__SYSCALL(__NR_clone3, sys_clone3)
+#endif
#undef __NR_syscalls
-#define __NR_syscalls 434
+#define __NR_syscalls 436
/*
* 32 bit systems traditionally used different
--git a/linux-headers/asm-mips/mman.h b/linux-headers/asm-mips/mman.h
index c2b40969eb..57dc2ac4f8 100644
--- a/linux-headers/asm-mips/mman.h
+++ b/linux-headers/asm-mips/mman.h
@@ -95,6 +95,9 @@
#define MADV_WIPEONFORK 18 /* Zero memory on fork, child only */
#define MADV_KEEPONFORK 19 /* Undo MADV_WIPEONFORK */
+#define MADV_COLD 20 /* deactivate these pages */
+#define MADV_PAGEOUT 21 /* reclaim these pages */
+
/* compatibility flags */
#define MAP_FILE 0
--git a/linux-headers/asm-mips/unistd_n32.h b/linux-headers/asm-mips/unistd_n32.h
index fb988de900..659d5c9ade 100644
--- a/linux-headers/asm-mips/unistd_n32.h
+++ b/linux-headers/asm-mips/unistd_n32.h
@@ -363,6 +363,8 @@
#define __NR_fsconfig (__NR_Linux + 431)
#define __NR_fsmount (__NR_Linux + 432)
#define __NR_fspick (__NR_Linux + 433)
+#define __NR_pidfd_open (__NR_Linux + 434)
+#define __NR_clone3 (__NR_Linux + 435)
#endif /* _ASM_MIPS_UNISTD_N32_H */
--git a/linux-headers/asm-mips/unistd_n64.h b/linux-headers/asm-mips/unistd_n64.h
index 17359163c9..4b6310a05c 100644
--- a/linux-headers/asm-mips/unistd_n64.h
+++ b/linux-headers/asm-mips/unistd_n64.h
@@ -339,6 +339,8 @@
#define __NR_fsconfig (__NR_Linux + 431)
#define __NR_fsmount (__NR_Linux + 432)
#define __NR_fspick (__NR_Linux + 433)
+#define __NR_pidfd_open (__NR_Linux + 434)
+#define __NR_clone3 (__NR_Linux + 435)
#endif /* _ASM_MIPS_UNISTD_N64_H */
--git a/linux-headers/asm-mips/unistd_o32.h b/linux-headers/asm-mips/unistd_o32.h
index 83c8d8fb83..4ce7b4e288 100644
--- a/linux-headers/asm-mips/unistd_o32.h
+++ b/linux-headers/asm-mips/unistd_o32.h
@@ -409,6 +409,8 @@
#define __NR_fsconfig (__NR_Linux + 431)
#define __NR_fsmount (__NR_Linux + 432)
#define __NR_fspick (__NR_Linux + 433)
+#define __NR_pidfd_open (__NR_Linux + 434)
+#define __NR_clone3 (__NR_Linux + 435)
#endif /* _ASM_MIPS_UNISTD_O32_H */
--git a/linux-headers/asm-powerpc/mman.h b/linux-headers/asm-powerpc/mman.h
index 1c2b3fca05..8db7c2a3be 100644
--- a/linux-headers/asm-powerpc/mman.h
+++ b/linux-headers/asm-powerpc/mman.h
@@ -21,15 +21,11 @@
#define MAP_DENYWRITE 0x0800 /* ETXTBSY */
#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */
+
#define MCL_CURRENT 0x2000 /* lock all currently mapped pages */
#define MCL_FUTURE 0x4000 /* lock all additions to address space */
#define MCL_ONFAULT 0x8000 /* lock all pages that are faulted in */
-#define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */
-#define MAP_NONBLOCK 0x10000 /* do not block on IO */
-#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */
-#define MAP_HUGETLB 0x40000 /* create a huge page mapping */
-
/* Override any generic PKEY permission defines */
#define PKEY_DISABLE_EXECUTE 0x4
#undef PKEY_ACCESS_MASK
--git a/linux-headers/asm-powerpc/unistd_32.h b/linux-headers/asm-powerpc/unistd_32.h
index 04cb2d3e61..5584cc1b4f 100644
--- a/linux-headers/asm-powerpc/unistd_32.h
+++ b/linux-headers/asm-powerpc/unistd_32.h
@@ -416,6 +416,8 @@
#define __NR_fsconfig 431
#define __NR_fsmount 432
#define __NR_fspick 433
+#define __NR_pidfd_open 434
+#define __NR_clone3 435
#endif /* _ASM_POWERPC_UNISTD_32_H */
--git a/linux-headers/asm-powerpc/unistd_64.h b/linux-headers/asm-powerpc/unistd_64.h
index b1e6921490..251bcff77e 100644
--- a/linux-headers/asm-powerpc/unistd_64.h
+++ b/linux-headers/asm-powerpc/unistd_64.h
@@ -388,6 +388,8 @@
#define __NR_fsconfig 431
#define __NR_fsmount 432
#define __NR_fspick 433
+#define __NR_pidfd_open 434
+#define __NR_clone3 435
#endif /* _ASM_POWERPC_UNISTD_64_H */
--git a/linux-headers/asm-s390/kvm.h b/linux-headers/asm-s390/kvm.h
index 03ab5968c7..0138ccb0d8 100644
--- a/linux-headers/asm-s390/kvm.h
+++ b/linux-headers/asm-s390/kvm.h
@@ -231,6 +231,12 @@ struct kvm_guest_debug_arch {
#define KVM_SYNC_GSCB (1UL << 9)
#define KVM_SYNC_BPBC (1UL << 10)
#define KVM_SYNC_ETOKEN (1UL << 11)
+
+#define KVM_SYNC_S390_VALID_FIELDS \
+ (KVM_SYNC_PREFIX | KVM_SYNC_GPRS | KVM_SYNC_ACRS | KVM_SYNC_CRS | \
+ KVM_SYNC_ARCH0 | KVM_SYNC_PFAULT | KVM_SYNC_VRS | KVM_SYNC_RICCB | \
+ KVM_SYNC_FPRS | KVM_SYNC_GSCB | KVM_SYNC_BPBC | KVM_SYNC_ETOKEN)
+
/* length and alignment of the sdnx as a power of two */
#define SDNXC 8
#define SDNXL (1UL << SDNXC)
--git a/linux-headers/asm-s390/unistd_32.h b/linux-headers/asm-s390/unistd_32.h
index 941853f3e9..7cce3ee296 100644
--- a/linux-headers/asm-s390/unistd_32.h
+++ b/linux-headers/asm-s390/unistd_32.h
@@ -406,5 +406,7 @@
#define __NR_fsconfig 431
#define __NR_fsmount 432
#define __NR_fspick 433
+#define __NR_pidfd_open 434
+#define __NR_clone3 435
#endif /* _ASM_S390_UNISTD_32_H */
--git a/linux-headers/asm-s390/unistd_64.h b/linux-headers/asm-s390/unistd_64.h
index 90271d7f82..2371ff1e7a 100644
--- a/linux-headers/asm-s390/unistd_64.h
+++ b/linux-headers/asm-s390/unistd_64.h
@@ -354,5 +354,7 @@
#define __NR_fsconfig 431
#define __NR_fsmount 432
#define __NR_fspick 433
+#define __NR_pidfd_open 434
+#define __NR_clone3 435
#endif /* _ASM_S390_UNISTD_64_H */
--git a/linux-headers/asm-x86/kvm.h b/linux-headers/asm-x86/kvm.h
index 6e7dd792e4..503d3f42da 100644
--- a/linux-headers/asm-x86/kvm.h
+++ b/linux-headers/asm-x86/kvm.h
@@ -378,23 +378,24 @@ struct kvm_sync_regs {
struct kvm_vcpu_events events;
};
-#define KVM_X86_QUIRK_LINT0_REENABLED (1 << 0)
-#define KVM_X86_QUIRK_CD_NW_CLEARED (1 << 1)
-#define KVM_X86_QUIRK_LAPIC_MMIO_HOLE (1 << 2)
-#define KVM_X86_QUIRK_OUT_7E_INC_RIP (1 << 3)
+#define KVM_X86_QUIRK_LINT0_REENABLED (1 << 0)
+#define KVM_X86_QUIRK_CD_NW_CLEARED (1 << 1)
+#define KVM_X86_QUIRK_LAPIC_MMIO_HOLE (1 << 2)
+#define KVM_X86_QUIRK_OUT_7E_INC_RIP (1 << 3)
+#define KVM_X86_QUIRK_MISC_ENABLE_NO_MWAIT (1 << 4)
#define KVM_STATE_NESTED_FORMAT_VMX 0
-#define KVM_STATE_NESTED_FORMAT_SVM 1
+#define KVM_STATE_NESTED_FORMAT_SVM 1 /* unused */
#define KVM_STATE_NESTED_GUEST_MODE 0x00000001
#define KVM_STATE_NESTED_RUN_PENDING 0x00000002
#define KVM_STATE_NESTED_EVMCS 0x00000004
-#define KVM_STATE_NESTED_VMX_VMCS_SIZE 0x1000
-
#define KVM_STATE_NESTED_SMM_GUEST_MODE 0x00000001
#define KVM_STATE_NESTED_SMM_VMXON 0x00000002
+#define KVM_STATE_NESTED_VMX_VMCS_SIZE 0x1000
+
struct kvm_vmx_nested_state_data {
__u8 vmcs12[KVM_STATE_NESTED_VMX_VMCS_SIZE];
__u8 shadow_vmcs12[KVM_STATE_NESTED_VMX_VMCS_SIZE];
@@ -432,4 +433,17 @@ struct kvm_nested_state {
} data;
};
+/* for KVM_CAP_PMU_EVENT_FILTER */
+struct kvm_pmu_event_filter {
+ __u32 action;
+ __u32 nevents;
+ __u32 fixed_counter_bitmap;
+ __u32 flags;
+ __u32 pad[4];
+ __u64 events[0];
+};
+
+#define KVM_PMU_EVENT_ALLOW 0
+#define KVM_PMU_EVENT_DENY 1
+
#endif /* _ASM_X86_KVM_H */
--git a/linux-headers/asm-x86/unistd.h b/linux-headers/asm-x86/unistd.h
index c04f638154..498d1515c6 100644
--- a/linux-headers/asm-x86/unistd.h
+++ b/linux-headers/asm-x86/unistd.h
@@ -3,7 +3,7 @@
#define _ASM_X86_UNISTD_H
/* x32 syscall flag bit */
-#define __X32_SYSCALL_BIT 0x40000000
+#define __X32_SYSCALL_BIT 0x40000000UL
# ifdef __i386__
# include <asm/unistd_32.h>
--git a/linux-headers/asm-x86/unistd_32.h b/linux-headers/asm-x86/unistd_32.h
index 57bb48854c..e8ebec1cdc 100644
--- a/linux-headers/asm-x86/unistd_32.h
+++ b/linux-headers/asm-x86/unistd_32.h
@@ -424,5 +424,7 @@
#define __NR_fsconfig 431
#define __NR_fsmount 432
#define __NR_fspick 433
+#define __NR_pidfd_open 434
+#define __NR_clone3 435
#endif /* _ASM_X86_UNISTD_32_H */
--git a/linux-headers/asm-x86/unistd_64.h b/linux-headers/asm-x86/unistd_64.h
index fe6aa0688a..a2f863d549 100644
--- a/linux-headers/asm-x86/unistd_64.h
+++ b/linux-headers/asm-x86/unistd_64.h
@@ -346,5 +346,7 @@
#define __NR_fsconfig 431
#define __NR_fsmount 432
#define __NR_fspick 433
+#define __NR_pidfd_open 434
+#define __NR_clone3 435
#endif /* _ASM_X86_UNISTD_64_H */
--git a/linux-headers/asm-x86/unistd_x32.h b/linux-headers/asm-x86/unistd_x32.h
index 09cca49ba7..4cdc67d848 100644
--- a/linux-headers/asm-x86/unistd_x32.h
+++ b/linux-headers/asm-x86/unistd_x32.h
@@ -299,6 +299,8 @@
#define __NR_fsconfig (__X32_SYSCALL_BIT + 431)
#define __NR_fsmount (__X32_SYSCALL_BIT + 432)
#define __NR_fspick (__X32_SYSCALL_BIT + 433)
+#define __NR_pidfd_open (__X32_SYSCALL_BIT + 434)
+#define __NR_clone3 (__X32_SYSCALL_BIT + 435)
#define __NR_rt_sigaction (__X32_SYSCALL_BIT + 512)
#define __NR_rt_sigreturn (__X32_SYSCALL_BIT + 513)
#define __NR_ioctl (__X32_SYSCALL_BIT + 514)
--git a/linux-headers/linux/kvm.h b/linux-headers/linux/kvm.h
index 18892d6541..3d9b18f7f8 100644
--- a/linux-headers/linux/kvm.h
+++ b/linux-headers/linux/kvm.h
@@ -116,7 +116,7 @@ struct kvm_irq_level {
* ACPI gsi notion of irq.
* For IA-64 (APIC model) IOAPIC0: irq 0-23; IOAPIC1: irq 24-47..
* For X86 (standard AT mode) PIC0/1: irq 0-15. IOAPIC0: 0-23..
- * For ARM: See Documentation/virtual/kvm/api.txt
+ * For ARM: See Documentation/virt/kvm/api.txt
*/
union {
__u32 irq;
@@ -243,6 +243,8 @@ struct kvm_hyperv_exit {
#define KVM_INTERNAL_ERROR_SIMUL_EX 2
/* Encounter unexpected vm-exit due to delivery event. */
#define KVM_INTERNAL_ERROR_DELIVERY_EV 3
+/* Encounter unexpected vm-exit reason */
+#define KVM_INTERNAL_ERROR_UNEXPECTED_EXIT_REASON 4
/* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */
struct kvm_run {
@@ -995,6 +997,9 @@ struct kvm_ppc_resize_hpt {
#define KVM_CAP_ARM_SVE 170
#define KVM_CAP_ARM_PTRAUTH_ADDRESS 171
#define KVM_CAP_ARM_PTRAUTH_GENERIC 172
+#define KVM_CAP_PMU_EVENT_FILTER 173
+#define KVM_CAP_ARM_IRQ_LINE_LAYOUT_2 174
+#define KVM_CAP_HYPERV_DIRECT_TLBFLUSH 175
#ifdef KVM_CAP_IRQ_ROUTING
@@ -1085,7 +1090,7 @@ struct kvm_xen_hvm_config {
*
* KVM_IRQFD_FLAG_RESAMPLE indicates resamplefd is valid and specifies
* the irqfd to operate in resampling mode for level triggered interrupt
- * emulation. See Documentation/virtual/kvm/api.txt.
+ * emulation. See Documentation/virt/kvm/api.txt.
*/
#define KVM_IRQFD_FLAG_RESAMPLE (1 << 1)
@@ -1141,6 +1146,7 @@ struct kvm_dirty_tlb {
#define KVM_REG_S390 0x5000000000000000ULL
#define KVM_REG_ARM64 0x6000000000000000ULL
#define KVM_REG_MIPS 0x7000000000000000ULL
+#define KVM_REG_RISCV 0x8000000000000000ULL
#define KVM_REG_SIZE_SHIFT 52
#define KVM_REG_SIZE_MASK 0x00f0000000000000ULL
@@ -1329,6 +1335,8 @@ struct kvm_s390_ucas_mapping {
#define KVM_PPC_GET_RMMU_INFO _IOW(KVMIO, 0xb0, struct kvm_ppc_rmmu_info)
/* Available with KVM_CAP_PPC_GET_CPU_CHAR */
#define KVM_PPC_GET_CPU_CHAR _IOR(KVMIO, 0xb1, struct kvm_ppc_cpu_char)
+/* Available with KVM_CAP_PMU_EVENT_FILTER */
+#define KVM_SET_PMU_EVENT_FILTER _IOW(KVMIO, 0xb2, struct kvm_pmu_event_filter)
/* ioctl for vm fd */
#define KVM_CREATE_DEVICE _IOWR(KVMIO, 0xe0, struct kvm_create_device)
--git a/linux-headers/linux/psp-sev.h b/linux-headers/linux/psp-sev.h
index 36bbe17d8f..34c39690c0 100644
--- a/linux-headers/linux/psp-sev.h
+++ b/linux-headers/linux/psp-sev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
/*
* Userspace interface for AMD Secure Encrypted Virtualization (SEV)
* platform management commands.
@@ -7,10 +8,6 @@
* Author: Brijesh Singh <brijesh.singh@amd.com>
*
* SEV API specification is available at: https://developer.amd.com/sev/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#ifndef __PSP_SEV_USER_H__
--git a/linux-headers/linux/vfio.h b/linux-headers/linux/vfio.h
index 24f505199f..fb10370d29 100644
--- a/linux-headers/linux/vfio.h
+++ b/linux-headers/linux/vfio.h
@@ -295,15 +295,38 @@ struct vfio_region_info_cap_type {
__u32 subtype; /* type specific */
};
+/*
+ * List of region types, global per bus driver.
+ * If you introduce a new type, please add it here.
+ */
+
+/* PCI region type containing a PCI vendor part */
#define VFIO_REGION_TYPE_PCI_VENDOR_TYPE (1 << 31)
#define VFIO_REGION_TYPE_PCI_VENDOR_MASK (0xffff)
+#define VFIO_REGION_TYPE_GFX (1)
+#define VFIO_REGION_TYPE_CCW (2)
+
+/* sub-types for VFIO_REGION_TYPE_PCI_* */
-/* 8086 Vendor sub-types */
+/* 8086 vendor PCI sub-types */
#define VFIO_REGION_SUBTYPE_INTEL_IGD_OPREGION (1)
#define VFIO_REGION_SUBTYPE_INTEL_IGD_HOST_CFG (2)
#define VFIO_REGION_SUBTYPE_INTEL_IGD_LPC_CFG (3)
-#define VFIO_REGION_TYPE_GFX (1)
+/* 10de vendor PCI sub-types */
+/*
+ * NVIDIA GPU NVlink2 RAM is coherent RAM mapped onto the host address space.
+ */
+#define VFIO_REGION_SUBTYPE_NVIDIA_NVLINK2_RAM (1)
+
+/* 1014 vendor PCI sub-types */
+/*
+ * IBM NPU NVlink2 ATSD (Address Translation Shootdown) register of NPU
+ * to do TLB invalidation on a GPU.
+ */
+#define VFIO_REGION_SUBTYPE_IBM_NVLINK2_ATSD (1)
+
+/* sub-types for VFIO_REGION_TYPE_GFX */
#define VFIO_REGION_SUBTYPE_GFX_EDID (1)
/**
@@ -353,25 +376,9 @@ struct vfio_region_gfx_edid {
#define VFIO_DEVICE_GFX_LINK_STATE_DOWN 2
};
-#define VFIO_REGION_TYPE_CCW (2)
-/* ccw sub-types */
+/* sub-types for VFIO_REGION_TYPE_CCW */
#define VFIO_REGION_SUBTYPE_CCW_ASYNC_CMD (1)
-/*
- * 10de vendor sub-type
- *
- * NVIDIA GPU NVlink2 RAM is coherent RAM mapped onto the host address space.
- */
-#define VFIO_REGION_SUBTYPE_NVIDIA_NVLINK2_RAM (1)
-
-/*
- * 1014 vendor sub-type
- *
- * IBM NPU NVlink2 ATSD (Address Translation Shootdown) register of NPU
- * to do TLB invalidation on a GPU.
- */
-#define VFIO_REGION_SUBTYPE_IBM_NVLINK2_ATSD (1)
-
/*
* The MSIX mappable capability informs that MSIX data of a BAR can be mmapped
* which allows direct access to non-MSIX registers which happened to be within
@@ -714,7 +721,31 @@ struct vfio_iommu_type1_info {
__u32 argsz;
__u32 flags;
#define VFIO_IOMMU_INFO_PGSIZES (1 << 0) /* supported page sizes info */
- __u64 iova_pgsizes; /* Bitmap of supported page sizes */
+#define VFIO_IOMMU_INFO_CAPS (1 << 1) /* Info supports caps */
+ __u64 iova_pgsizes; /* Bitmap of supported page sizes */
+ __u32 cap_offset; /* Offset within info struct of first cap */
+};
+
+/*
+ * The IOVA capability allows to report the valid IOVA range(s)
+ * excluding any non-relaxable reserved regions exposed by
+ * devices attached to the container. Any DMA map attempt
+ * outside the valid iova range will return error.
+ *
+ * The structures below define version 1 of this capability.
+ */
+#define VFIO_IOMMU_TYPE1_INFO_CAP_IOVA_RANGE 1
+
+struct vfio_iova_range {
+ __u64 start;
+ __u64 end;
+};
+
+struct vfio_iommu_type1_info_cap_iova_range {
+ struct vfio_info_cap_header header;
+ __u32 nr_iovas;
+ __u32 reserved;
+ struct vfio_iova_range iova_ranges[];
};
#define VFIO_IOMMU_GET_INFO _IO(VFIO_TYPE, VFIO_BASE + 12)
--
2.14.5
^ permalink raw reply related [flat|nested] 4+ messages in thread* [PATCH V2 2/2] target/i386/kvm: Add Hyper-V direct tlb flush support
2019-10-15 14:36 [PATCH V2 0/2] target/i386/kvm: Add Hyper-V direct tlb flush support lantianyu1986
2019-10-15 14:36 ` [PATCH V2 1/2] linux headers: update against Linux 5.4-rc2 lantianyu1986
@ 2019-10-15 14:36 ` lantianyu1986
2019-10-15 17:01 ` Vitaly Kuznetsov
1 sibling, 1 reply; 4+ messages in thread
From: lantianyu1986 @ 2019-10-15 14:36 UTC (permalink / raw)
To: mst, cohuck, pbonzini, rth, ehabkost, mtosatti, vkuznets, rkagan
Cc: Tianyu Lan, qemu-devel, kvm
From: Tianyu Lan <Tianyu.Lan@microsoft.com>
Hyper-V direct tlb flush targets KVM on Hyper-V guest.
Enable direct TLB flush for its guests meaning that TLB
flush hypercalls are handled by Level 0 hypervisor (Hyper-V)
bypassing KVM in Level 1. Due to the different ABI for hypercall
parameters between Hyper-V and KVM, KVM capabilities should be
hidden when enable Hyper-V direct tlb flush otherwise KVM
hypercalls may be intercepted by Hyper-V. Add new parameter
"hv-direct-tlbflush". Check expose_kvm and Hyper-V tlb flush
capability status before enabling the feature.
Signed-off-by: Tianyu Lan <Tianyu.Lan@microsoft.com>
---
Change since V1:
- Add direct tlb flush's Hyper-V property and use
hv_cpuid_check_and_set() to check the dependency of tlbflush
feature.
- Make new feature work with Hyper-V passthrough mode.
---
docs/hyperv.txt | 12 ++++++++++++
target/i386/cpu.c | 2 ++
target/i386/cpu.h | 1 +
target/i386/kvm.c | 23 +++++++++++++++++++++++
4 files changed, 38 insertions(+)
diff --git a/docs/hyperv.txt b/docs/hyperv.txt
index 8fdf25c829..ceab8c21fe 100644
--- a/docs/hyperv.txt
+++ b/docs/hyperv.txt
@@ -184,6 +184,18 @@ enabled.
Requires: hv-vpindex, hv-synic, hv-time, hv-stimer
+3.18. hv-direct-tlbflush
+=======================
+The enlightenment targets KVM on Hyper-V guest. Enable direct TLB flush for
+its guests meaning that TLB flush hypercalls are handled by Level 0 hypervisor
+(Hyper-V) bypassing KVM in Level 1. Due to the different ABI for hypercall
+parameters between Hyper-V and KVM, enabling this capability effectively
+disables all hypercall handling by KVM (as some KVM hypercall may be mistakenly
+treated as TLB flush hypercalls by Hyper-V). So kvm capability should not show
+to guest when enable this capability. If not, user will fail to enable this
+capability.
+
+Requires: hv-tlbflush, -kvm
4. Development features
========================
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 44f1bbdcac..7bc7fee512 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -6156,6 +6156,8 @@ static Property x86_cpu_properties[] = {
HYPERV_FEAT_IPI, 0),
DEFINE_PROP_BIT64("hv-stimer-direct", X86CPU, hyperv_features,
HYPERV_FEAT_STIMER_DIRECT, 0),
+ DEFINE_PROP_BIT64("hv-direct-tlbflush", X86CPU, hyperv_features,
+ HYPERV_FEAT_DIRECT_TLBFLUSH, 0),
DEFINE_PROP_BOOL("hv-passthrough", X86CPU, hyperv_passthrough, false),
DEFINE_PROP_BOOL("check", X86CPU, check_cpuid, true),
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index eaa5395aa5..3cb105f7d6 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -907,6 +907,7 @@ typedef uint64_t FeatureWordArray[FEATURE_WORDS];
#define HYPERV_FEAT_EVMCS 12
#define HYPERV_FEAT_IPI 13
#define HYPERV_FEAT_STIMER_DIRECT 14
+#define HYPERV_FEAT_DIRECT_TLBFLUSH 15
#ifndef HYPERV_SPINLOCK_NEVER_RETRY
#define HYPERV_SPINLOCK_NEVER_RETRY 0xFFFFFFFF
diff --git a/target/i386/kvm.c b/target/i386/kvm.c
index 11b9c854b5..7e0fbc730e 100644
--- a/target/i386/kvm.c
+++ b/target/i386/kvm.c
@@ -900,6 +900,10 @@ static struct {
},
.dependencies = BIT(HYPERV_FEAT_STIMER)
},
+ [HYPERV_FEAT_DIRECT_TLBFLUSH] = {
+ .desc = "direct tlbflush (hv-direct-tlbflush)",
+ .dependencies = BIT(HYPERV_FEAT_TLBFLUSH)
+ },
};
static struct kvm_cpuid2 *try_get_hv_cpuid(CPUState *cs, int max)
@@ -1224,6 +1228,7 @@ static int hyperv_handle_properties(CPUState *cs,
r |= hv_cpuid_check_and_set(cs, cpuid, HYPERV_FEAT_EVMCS);
r |= hv_cpuid_check_and_set(cs, cpuid, HYPERV_FEAT_IPI);
r |= hv_cpuid_check_and_set(cs, cpuid, HYPERV_FEAT_STIMER_DIRECT);
+ r |= hv_cpuid_check_and_set(cs, cpuid, HYPERV_FEAT_DIRECT_TLBFLUSH);
/* Additional dependencies not covered by kvm_hyperv_properties[] */
if (hyperv_feat_enabled(cpu, HYPERV_FEAT_SYNIC) &&
@@ -1243,6 +1248,24 @@ static int hyperv_handle_properties(CPUState *cs,
goto free;
}
+ if (hyperv_feat_enabled(cpu, HYPERV_FEAT_DIRECT_TLBFLUSH) ||
+ cpu->hyperv_passthrough) {
+ if (!cpu->expose_kvm) {
+ r = kvm_vcpu_enable_cap(cs, KVM_CAP_HYPERV_DIRECT_TLBFLUSH, 0, 0);
+ if (hyperv_feat_enabled(cpu, HYPERV_FEAT_DIRECT_TLBFLUSH) && r) {
+ fprintf(stderr,
+ "Hyper-V %s is not supported by kernel\n",
+ kvm_hyperv_properties[HYPERV_FEAT_DIRECT_TLBFLUSH].desc);
+ return -ENOSYS;
+ }
+ } else if (!cpu->hyperv_passthrough) {
+ fprintf(stderr,
+ "Hyper-V %s requires not to expose KVM capabilities.\n",
+ kvm_hyperv_properties[HYPERV_FEAT_DIRECT_TLBFLUSH].desc);
+ return -ENOSYS;
+ }
+ }
+
if (cpu->hyperv_passthrough) {
/* We already copied all feature words from KVM as is */
r = cpuid->nent;
--
2.14.5
^ permalink raw reply related [flat|nested] 4+ messages in thread