Merge remote-tracking branch 'remotes/bonzini-gitlab/tags/for-upstream' into staging

pm215 · pm215 · commit 7d79344d4fa4 · 2021-09-13T13:33:21.000+01:00
* Fixes for "-cpu max" on i386 TCG (Daniel)
* vVMLOAD/VMSAVE and vGIF implementation (Lara)
* Reorganize i386 targets documentation in preparation for SGX (myself)
* Meson cleanups (myself, Thomas)
* NVMM fixes (Reinoud)
* Suppress bogus -Wstringop-overflow (Richard)

# gpg: Signature made Mon 13 Sep 2021 12:56:33 BST
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini &lt;bonzini@gnu.org&gt;" [full]
# gpg:                 aka "Paolo Bonzini &lt;pbonzini@redhat.com&gt;" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini-gitlab/tags/for-upstream: (21 commits)
  docs: link to archived Fedora code of conduct
  Fix nvmm_ram_block_added() function arguments
  Only check CONFIG_NVMM when NEED_CPU_H is defined
  util: Suppress -Wstringop-overflow in qemu_thread_start
  fw_cfg: add etc/msr_feature_control
  meson: remove dead variable
  meson: do not use python.full_path() unnecessarily
  meson: look up cp and dtrace with find_program()
  meson.build: Do not look for VNC-related libraries if have_system is not set
  docs/system: move x86 CPU configuration to a separate document
  docs/system: standardize man page sections to --- with overline
  docs: standardize directory index to --- with overline
  docs: standardize book titles to === with overline
  target/i386: Added vVMLOAD and vVMSAVE feature
  target/i386: Added changed priority check for VIRQ
  target/i386: Added ignore TPR check in ctl_has_irq
  target/i386: Added VGIF V_IRQ masking capability
  target/i386: Moved int_ctl into CPUX86State structure
  target/i386: Added VGIF feature
  target/i386: VMRUN and VMLOAD canonicalizations
  ...

Signed-off-by: Peter Maydell &lt;peter.maydell@linaro.org&gt;
diff --git a/docs/about/index.rst b/docs/about/index.rst
@@ -1,5 +1,6 @@
+----------
 About QEMU
-==========
+----------
 
 QEMU is a generic and open source machine emulator and virtualizer.
 
diff --git a/docs/devel/code-of-conduct.rst b/docs/devel/code-of-conduct.rst
@@ -55,6 +55,6 @@ Sources
 -------
 
 This document is based on the `Fedora Code of Conduct
-<https://fedoraproject.org/code-of-conduct>`__ and the
-`Contributor Covenant version 1.3.0
+<http://web.archive.org/web/20210429132536/https://docs.fedoraproject.org/en-US/project/code-of-conduct/>`__
+(as of April 2021) and the `Contributor Covenant version 1.3.0
 <https://www.contributor-covenant.org/version/1/3/0/code-of-conduct/>`__.
diff --git a/docs/devel/index.rst b/docs/devel/index.rst
@@ -1,5 +1,6 @@
+---------------------
 Developer Information
-=====================
+---------------------
 
 This section of the manual documents various parts of the internals of QEMU.
 You only need to read it if you are interested in reading or
diff --git a/docs/index.rst b/docs/index.rst
@@ -3,6 +3,7 @@
    You can adapt this file completely to your liking, but it should at least
    contain the root `toctree` directive.
 
+================================
 Welcome to QEMU's documentation!
 ================================
 
diff --git a/docs/interop/index.rst b/docs/interop/index.rst
@@ -1,5 +1,6 @@
+------------------------------------------------
 System Emulation Management and Interoperability
-================================================
+------------------------------------------------
 
 This section of the manual contains documents and specifications that
 are useful for making QEMU interoperate with other software.
diff --git a/docs/specs/index.rst b/docs/specs/index.rst
@@ -1,5 +1,6 @@
+----------------------------------------------
 System Emulation Guest Hardware Specifications
-==============================================
+----------------------------------------------
 
 This section of the manual contains specifications of
 guest hardware that is specific to QEMU.
diff --git a/docs/system/cpu-models-x86.rst.inc b/docs/system/cpu-models-x86.rst.inc
@@ -1,5 +1,5 @@
 Recommendations for KVM CPU model configuration on x86 hosts
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+============================================================
 
 The information that follows provides recommendations for configuring
 CPU models on x86 hosts. The goals are to maximise performance, while
@@ -368,7 +368,7 @@ featureset, which prevents guests having optimal performance.
 
 
 Syntax for configuring CPU models
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+=================================
 
 The examples below illustrate the approach to configuring the various
 CPU models / features in QEMU and libvirt.
diff --git a/docs/system/i386/cpu.rst b/docs/system/i386/cpu.rst
@@ -0,0 +1 @@
+.. include:: ../cpu-models-x86.rst.inc
diff --git a/docs/system/index.rst b/docs/system/index.rst
@@ -1,5 +1,6 @@
+----------------
 System Emulation
-================
+----------------
 
 This section of the manual is the overall guide for users using QEMU
 for full system emulation (as opposed to user-mode emulation).
diff --git a/docs/system/qemu-block-drivers.rst b/docs/system/qemu-block-drivers.rst
@@ -1,18 +1,22 @@
 :orphan:
 
+============================
 QEMU block drivers reference
 ============================
 
+--------
 Synopsis
 --------
 
 QEMU block driver reference manual
 
+-----------
 Description
 -----------
 
 .. include:: qemu-block-drivers.rst.inc
 
+--------
 See also
 --------
 
diff --git a/docs/system/qemu-cpu-models.rst b/docs/system/qemu-cpu-models.rst
@@ -1,20 +1,24 @@
 :orphan:
 
+==================================
 QEMU / KVM CPU model configuration
 ==================================
 
+--------
 Synopsis
-''''''''
+--------
 
 QEMU CPU Modelling Infrastructure manual
 
+-----------
 Description
-'''''''''''
+-----------
 
 .. include:: cpu-models-x86.rst.inc
 .. include:: cpu-models-mips.rst.inc
 
+--------
 See also
-''''''''
+--------
 
 The HTML documentation of QEMU for more precise information and Linux user mode emulator invocation.
diff --git a/docs/system/qemu-manpage.rst b/docs/system/qemu-manpage.rst
@@ -6,21 +6,25 @@
    parts of the documentation that go in the manpage as well as the
    HTML manual.
 
-Title
-=====
+=======================
+QEMU User Documentation
+=======================
 
+--------
 Synopsis
 --------
 
 .. parsed-literal::
 
    |qemu_system| [options] [disk_image]
 
+-----------
 Description
 -----------
 
 .. include:: target-i386-desc.rst.inc
 
+-------
 Options
 -------
 
@@ -33,11 +37,13 @@ not need a disk image.
 
 .. include:: mux-chardev.rst.inc
 
+-----
 Notes
 -----
 
 .. include:: device-url-syntax.rst.inc
 
+--------
 See also
 --------
 
diff --git a/docs/system/target-i386.rst b/docs/system/target-i386.rst
@@ -19,7 +19,13 @@ Board-specific documentation
    i386/microvm
    i386/pc
 
-.. include:: cpu-models-x86.rst.inc
+Architectural features
+~~~~~~~~~~~~~~~~~~~~~~
+
+.. toctree::
+   :maxdepth: 1
+
+   i386/cpu
 
 .. _pcsys_005freq:
 
diff --git a/docs/tools/index.rst b/docs/tools/index.rst
@@ -1,5 +1,6 @@
+-----
 Tools
-=====
+-----
 
 This section of the manual documents QEMU's "tools": its
 command line utilities and other standalone programs.
diff --git a/docs/tools/qemu-img.rst b/docs/tools/qemu-img.rst
@@ -1,3 +1,4 @@
+=======================
 QEMU disk image utility
 =======================
 
diff --git a/docs/tools/qemu-nbd.rst b/docs/tools/qemu-nbd.rst
@@ -1,3 +1,4 @@
+=====================================
 QEMU Disk Network Block Device Server
 =====================================
 
diff --git a/docs/tools/qemu-pr-helper.rst b/docs/tools/qemu-pr-helper.rst
@@ -1,3 +1,4 @@
+==================================
 QEMU persistent reservation helper
 ==================================
 
diff --git a/docs/tools/qemu-storage-daemon.rst b/docs/tools/qemu-storage-daemon.rst
@@ -1,3 +1,4 @@
+===================
 QEMU Storage Daemon
 ===================
 
diff --git a/docs/tools/qemu-trace-stap.rst b/docs/tools/qemu-trace-stap.rst
@@ -1,3 +1,4 @@
+=========================
 QEMU SystemTap trace tool
 =========================
 
diff --git a/docs/user/index.rst b/docs/user/index.rst
@@ -1,5 +1,6 @@
+-------------------
 User Mode Emulation
-===================
+-------------------
 
 This section of the manual is the overall guide for users using QEMU
 for user-mode emulation.  In this mode, QEMU can launch
diff --git a/hw/nvram/fw_cfg.c b/hw/nvram/fw_cfg.c
@@ -878,6 +878,7 @@ static struct {
     { "etc/tpm/log", 150 },
     { "etc/acpi/rsdp", 160 },
     { "bootorder", 170 },
+    { "etc/msr_feature_control", 180 },
 
 #define FW_CFG_ORDER_OVERRIDE_LAST 200
 };
diff --git a/include/sysemu/nvmm.h b/include/sysemu/nvmm.h
@@ -10,8 +10,7 @@
 #ifndef QEMU_NVMM_H
 #define QEMU_NVMM_H
 
-#include "config-host.h"
-#include "qemu-common.h"
+#ifdef NEED_CPU_H
 
 #ifdef CONFIG_NVMM
 
@@ -23,4 +22,6 @@ int nvmm_enabled(void);
 
 #endif /* CONFIG_NVMM */
 
-#endif /* CONFIG_NVMM */
+#endif /* NEED_CPU_H */
+
+#endif /* QEMU_NVMM_H */
diff --git a/meson.build b/meson.build
@@ -931,7 +931,7 @@ vnc = not_found
 png = not_found
 jpeg = not_found
 sasl = not_found
-if not get_option('vnc').disabled()
+if have_system and not get_option('vnc').disabled()
   vnc = declare_dependency() # dummy dependency
   png = dependency('libpng', required: get_option('vnc_png'),
                    method: 'pkg-config', kwargs: static_kwargs)
diff --git a/pc-bios/keymaps/meson.build b/pc-bios/keymaps/meson.build
@@ -38,6 +38,7 @@ if meson.is_cross_build() or 'CONFIG_XKBCOMMON' not in config_host
 else
   native_qemu_keymap = qemu_keymap
 endif
+cp = find_program('cp')
 
 t = []
 foreach km, args: keymaps
@@ -55,7 +56,7 @@ foreach km, args: keymaps
                        build_by_default: true,
                        input: km,
                        output: km,
-                       command: ['cp', '@INPUT@', '@OUTPUT@'],
+                       command: [cp, '@INPUT@', '@OUTPUT@'],
                        install: true,
                        install_dir: qemu_datadir / 'keymaps')
   endif
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
@@ -631,7 +631,8 @@ void x86_cpu_vendor_words2str(char *dst, uint32_t vendor1,
 #define TCG_EXT3_FEATURES (CPUID_EXT3_LAHF_LM | CPUID_EXT3_SVM | \
           CPUID_EXT3_CR8LEG | CPUID_EXT3_ABM | CPUID_EXT3_SSE4A)
 #define TCG_EXT4_FEATURES 0
-#define TCG_SVM_FEATURES CPUID_SVM_NPT
+#define TCG_SVM_FEATURES (CPUID_SVM_NPT | CPUID_SVM_VGIF | \
+          CPUID_SVM_SVME_ADDR_CHK)
 #define TCG_KVM_FEATURES 0
 #define TCG_7_0_EBX_FEATURES (CPUID_7_0_EBX_SMEP | CPUID_7_0_EBX_SMAP | \
           CPUID_7_0_EBX_BMI1 | CPUID_7_0_EBX_BMI2 | CPUID_7_0_EBX_ADX | \
@@ -5115,6 +5116,15 @@ static void x86_register_cpudef_types(const X86CPUDefinition *def)
 
 }
 
+uint32_t cpu_x86_virtual_addr_width(CPUX86State *env)
+{
+    if  (env->features[FEAT_7_0_ECX] & CPUID_7_0_ECX_LA57) {
+        return 57; /* 57 bits virtual */
+    } else {
+        return 48; /* 48 bits virtual */
+    }
+}
+
 void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
                    uint32_t *eax, uint32_t *ebx,
                    uint32_t *ecx, uint32_t *edx)
@@ -5517,16 +5527,10 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
         break;
     case 0x80000008:
         /* virtual & phys address size in low 2 bytes. */
+        *eax = cpu->phys_bits;
         if (env->features[FEAT_8000_0001_EDX] & CPUID_EXT2_LM) {
             /* 64 bit processor */
-            *eax = cpu->phys_bits; /* configurable physical bits */
-            if  (env->features[FEAT_7_0_ECX] & CPUID_7_0_ECX_LA57) {
-                *eax |= 0x00003900; /* 57 bits virtual */
-            } else {
-                *eax |= 0x00003000; /* 48 bits virtual */
-            }
-        } else {
-            *eax = cpu->phys_bits;
+             *eax |= (cpu_x86_virtual_addr_width(env) << 8);
         }
         *ebx = env->features[FEAT_8000_0008_EBX];
         if (cs->nr_cores * cs->nr_threads > 1) {
@@ -5651,8 +5655,9 @@ static void x86_cpu_reset(DeviceState *dev)
     env->old_exception = -1;
 
     /* init to reset state */
-
+    env->int_ctl = 0;
     env->hflags2 |= HF2_GIF_MASK;
+    env->hflags2 |= HF2_VGIF_MASK;
     env->hflags &= ~HF_GUEST_MASK;
 
     cpu_x86_update_cr0(env, 0x60000010);
@@ -6536,10 +6541,12 @@ int x86_cpu_pending_interrupt(CPUState *cs, int interrupt_request)
                       !(env->hflags & HF_INHIBIT_IRQ_MASK))))) {
             return CPU_INTERRUPT_HARD;
 #if !defined(CONFIG_USER_ONLY)
-        } else if ((interrupt_request & CPU_INTERRUPT_VIRQ) &&
+        } else if (env->hflags2 & HF2_VGIF_MASK) {
+            if((interrupt_request & CPU_INTERRUPT_VIRQ) &&
                    (env->eflags & IF_MASK) &&
                    !(env->hflags & HF_INHIBIT_IRQ_MASK)) {
-            return CPU_INTERRUPT_VIRQ;
+                        return CPU_INTERRUPT_VIRQ;
+            }
 #endif
         }
     }
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
diff --git a/target/i386/machine.c b/target/i386/machine.c
diff --git a/target/i386/nvmm/nvmm-all.c b/target/i386/nvmm/nvmm-all.c
diff --git a/target/i386/svm.h b/target/i386/svm.h
diff --git a/target/i386/tcg/seg_helper.c b/target/i386/tcg/seg_helper.c
diff --git a/target/i386/tcg/sysemu/excp_helper.c b/target/i386/tcg/sysemu/excp_helper.c
diff --git a/target/i386/tcg/sysemu/misc_helper.c b/target/i386/tcg/sysemu/misc_helper.c
diff --git a/target/i386/tcg/sysemu/svm_helper.c b/target/i386/tcg/sysemu/svm_helper.c
diff --git a/trace/meson.build b/trace/meson.build
diff --git a/ui/meson.build b/ui/meson.build
diff --git a/util/qemu-thread-posix.c b/util/qemu-thread-posix.c
