Commit Graph

16 Commits

Author SHA1 Message Date
Markus Armbruster b21e238037 Use g_new() & friends where that makes obvious sense
g_new(T, n) is neater than g_malloc(sizeof(T) * n).  It's also safer,
for two reasons.  One, it catches multiplication overflowing size_t.
Two, it returns T * rather than void *, which lets the compiler catch
more type errors.

This commit only touches allocations with size arguments of the form
sizeof(T).

Patch created mechanically with:

    $ spatch --in-place --sp-file scripts/coccinelle/use-g_new-etc.cocci \
	     --macro-file scripts/cocci-macro-file.h FILES...

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20220315144156.1595462-4-armbru@redhat.com>
Reviewed-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru>
2022-03-21 15:44:44 +01:00
Ivan Shcherbakov 5ad93fd351 whpx: Fixed incorrect CR8/TPR synchronization
This fixes the following error triggered when stopping and resuming a 64-bit
Linux kernel via gdb:

qemu-system-x86_64.exe: WHPX: Failed to set virtual processor context, hr=c0350005

The previous logic for synchronizing the values did not take into account
that the lower 4 bits of the CR8 register, containing the priority level,
mapped to bits 7:4 of the APIC.TPR register (see section 10.8.6.1 of
Volume 3 of Intel 64 and IA-32 Architectures Software Developer's Manual).
The caused WHvSetVirtualProcessorRegisters() to fail with an error,
effectively preventing GDB from changing the guest context.

Signed-off-by: Ivan Shcherbakov <ivan@sysprogs.com>
Message-Id: <010b01d82874$bb4ef160$31ecd420$@sysprogs.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-03-15 11:26:20 +01:00
Ivan Shcherbakov e561890841 whpx: Fixed reporting of the CPU context to GDB for 64-bit
Make sure that pausing the VM while in 64-bit mode will set the
HF_CS64_MASK flag in env->hflags (see x86_update_hflags() in
target/i386/cpu.c).

Without it, the code in gdbstub.c would only use the 32-bit register values
when debugging 64-bit targets, making debugging effectively impossible.

Signed-off-by: Ivan Shcherbakov <ivan@sysprogs.com>
Message-Id: <00f701d82874$68b02000$3a106000$@sysprogs.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-03-15 11:26:20 +01:00
Philippe Mathieu-Daudé 95e862d72c target/i386: Remove pointless CPUArchState casts
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220305233415.64627-3-philippe.mathieu.daude@gmail.com>
2022-03-06 22:23:09 +01:00
Philippe Mathieu-Daudé 3686119875 target: Use forward declared type instead of structure type
The CPU / CPU state are forward declared.

  $ git grep -E 'struct [A-Za-z]+CPU\ \*'
  target/arm/hvf_arm.h:16:void hvf_arm_set_cpu_features_from_host(struct ARMCPU *cpu);
  target/openrisc/cpu.h:234:    int (*cpu_openrisc_map_address_code)(struct OpenRISCCPU *cpu,
  target/openrisc/cpu.h:238:    int (*cpu_openrisc_map_address_data)(struct OpenRISCCPU *cpu,

  $ git grep -E 'struct CPU[A-Za-z0-9]+State\ \*'
  target/mips/internal.h:137:    int (*map_address)(struct CPUMIPSState *env, hwaddr *physical, int *prot,
  target/mips/internal.h:139:    void (*helper_tlbwi)(struct CPUMIPSState *env);
  target/mips/internal.h:140:    void (*helper_tlbwr)(struct CPUMIPSState *env);
  target/mips/internal.h:141:    void (*helper_tlbp)(struct CPUMIPSState *env);
  target/mips/internal.h:142:    void (*helper_tlbr)(struct CPUMIPSState *env);
  target/mips/internal.h:143:    void (*helper_tlbinv)(struct CPUMIPSState *env);
  target/mips/internal.h:144:    void (*helper_tlbinvf)(struct CPUMIPSState *env);
  target/xtensa/cpu.h:347:    struct CPUXtensaState *env;
  ...

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220214183144.27402-12-f4bug@amsat.org>
2022-03-06 22:22:40 +01:00
Philippe Mathieu-Daudé ad7d684dfd accel: Introduce AccelOpsClass::cpu_thread_is_idle()
Add cpu_thread_is_idle() to AccelOps, and implement it for the
KVM / WHPX accelerators.

Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220207075426.81934-11-f4bug@amsat.org>
2022-03-06 13:15:42 +01:00
Peter Xu 142518bda5 memory: Name all the memory listeners
Provide a name field for all the memory listeners.  It can be used to identify
which memory listener is which.

Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20210817013553.30584-2-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-09-30 15:30:24 +02:00
Markus Armbruster 436c831a28 migration: Unify failure check for migrate_add_blocker()
Most callers check the return value.  Some check whether it set an
error.  Functionally equivalent, but the former tends to be easier on
the eyes, so do that everywhere.

Prior art: commit c6ecec43b2 "qemu-option: Check return value instead
of @err where convenient".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20210720125408.387910-10-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
2021-08-26 17:15:28 +02:00
Markus Armbruster 650126f838 whpx nvmm: Drop useless migrate_del_blocker()
There is nothing to delete after migrate_add_blocker() failed.  Trying
anyway is safe, but useless.  Don't.

Cc: Sunil Muthuswamy <sunilmut@microsoft.com>
Cc: Kamil Rytarowski <kamil@netbsd.org>
Cc: Reinoud Zandijk <reinoud@netbsd.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20210720125408.387910-9-armbru@redhat.com>
Reviewed-by: Reinoud Zandijk <reinoud@NetBSD.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
2021-08-26 17:15:28 +02:00
Philippe Mathieu-Daudé 538f049704 sysemu: Let VMChangeStateHandler take boolean 'running' argument
The 'running' argument from VMChangeStateHandler does not require
other value than 0 / 1. Make it a plain boolean.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20210111152020.1422021-3-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-03-09 23:13:57 +01:00
Claudio Fontana b86f59c715 accel: replace struct CpusAccel with AccelOpsClass
This will allow us to centralize the registration of
the cpus.c module accelerator operations (in accel/accel-softmmu.c),
and trigger it automatically using object hierarchy lookup from the
new accel_init_interfaces() initialization step, depending just on
which accelerators are available in the code.

Rename all tcg-cpus.c, kvm-cpus.c, etc to tcg-accel-ops.c,
kvm-accel-ops.c, etc, matching the object type names.

Signed-off-by: Claudio Fontana <cfontana@suse.de>
Message-Id: <20210204163931.7358-18-cfontana@suse.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-02-05 10:24:15 -10:00
Claudio Fontana 940e43aa30 accel: extend AccelState and AccelClass to user-mode
Signed-off-by: Claudio Fontana <cfontana@suse.de>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

[claudio: rebased on Richard's splitwx work]

Signed-off-by: Claudio Fontana <cfontana@suse.de>
Message-Id: <20210204163931.7358-17-cfontana@suse.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-02-05 10:24:15 -10:00
Yonggang Luo 9a46d044d8 whpx: move whpx_lapic_state from header to c file
This struct only used in whpx-apic.c, there is no need
expose it in whpx.h.

Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Message-Id: <20210107101919.80-6-luoyonggang@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-01-12 12:38:03 +01:00
Paolo Bonzini 84f4ef17ae whpx: move internal definitions to whpx-internal.h
Only leave the external interface in sysemu/whpx.h.  whpx_apic_in_platform
is moved to a .c file because it needs whpx_state.

Reported-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20201219090637.1700900-3-pbonzini@redhat.com>
2021-01-12 12:38:03 +01:00
Paolo Bonzini 9102c96821 whpx: rename whp-dispatch to whpx-internal.h
Rename the file in preparation for moving more implementation-internal
definitions to it.  The build is still broken though.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20201219090637.1700900-2-pbonzini@redhat.com>
2021-01-12 12:38:03 +01:00
Claudio Fontana 1fc33bb9f0 i386: move whpx accel files into whpx/
Signed-off-by: Claudio Fontana <cfontana@suse.de>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201212155530.23098-3-cfontana@suse.de>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-12-16 14:06:53 -05:00