Commit Graph

11 Commits

Author SHA1 Message Date
Marc-André Lureau 8905770b27 compiler.h: replace QEMU_NORETURN with G_NORETURN
G_NORETURN was introduced in glib 2.68, fallback to G_GNUC_NORETURN in
glib-compat.

Note that this attribute must be placed before the function declaration
(bringing a bit of consistency in qemu codebase usage).

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Message-Id: <20220420132624.2439741-20-marcandre.lureau@redhat.com>
2022-04-21 17:03:51 +04:00
Richard Henderson f74bd157c6 target/i386: Implement x86_cpu_record_sigsegv
Record cr2, error_code, and exception_index.  That last means
that we must exit to cpu_loop ourselves, instead of letting
exception_index being overwritten.

Use the maperr parameter to properly set PG_ERROR_P_MASK.

Reviewed by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-11-02 07:00:52 -04:00
Philippe Mathieu-Daudé 604664726f target/i386: Restrict cpu_exec_interrupt() handler to sysemu
Restrict cpu_exec_interrupt() and its callees to sysemu.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210911165434.531552-11-f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-09-14 12:00:21 -07:00
Richard Henderson 4ea2449b58 target/i386: Move invlpg, hlt, monitor, mwait to sysemu
These instructions are all privileged.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210514151342.384376-42-richard.henderson@linaro.org>
2021-05-19 12:17:11 -05:00
Richard Henderson 3d4fce8b8e target/i386: Remove user stub for cpu_vmexit
This function is only called from tcg/sysemu/.
There is no need for a stub in tcg/user/.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210514151342.384376-39-richard.henderson@linaro.org>
2021-05-19 12:17:11 -05:00
Claudio Fontana 30493a030f i386: split seg_helper into user-only and sysemu parts
Signed-off-by: Claudio Fontana <cfontana@suse.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

[claudio]:
Rebased on commit 68775856 ("target/i386: svm: do not discard high 32 bits")

Signed-off-by: Claudio Fontana <cfontana@suse.de>
Message-Id: <20210322132800.7470-18-cfontana@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-05-10 15:41:52 -04:00
Claudio Fontana 6d8d1a031a i386: move TCG bpt_helper into sysemu/
for user-mode, assert that the hidden IOBPT flags are not set
while attempting to generate io_bpt helpers.

Signed-off-by: Claudio Fontana <cfontana@suse.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210322132800.7470-14-cfontana@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-05-10 15:41:51 -04:00
Paolo Bonzini 687758565a target/i386: svm: do not discard high 32 bits of EXITINFO1
env->error_code is only 32-bits wide, so the high 32 bits of EXITINFO1
are being lost.  However, even though saving guest state and restoring
host state must be delayed to do_vmexit, because they might take tb_lock,
it is always possible to write to the VMCB.  So do this for the exit
code and EXITINFO1, just like it is already being done for EXITINFO2.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-03-19 08:48:18 -04:00
Paolo Bonzini b818413583 target/i386: allow modifying TCG phys-addr-bits
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-03-19 08:48:18 -04:00
Claudio Fontana 69483f3115 i386: tcg: remove inline from cpu_load_eflags
make it a regular function.

Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Claudio Fontana <cfontana@suse.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201212155530.23098-9-cfontana@suse.de>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-12-16 15:50:33 -05:00
Claudio Fontana ed69e8314d i386: move TCG cpu class initialization to tcg/
to do this, we need to take code out of cpu.c and helper.c,
and also move some prototypes from cpu.h, for code that is
needed in tcg/xxx_helper.c, and which in turn is part of the
callbacks registered by the class initialization.

Therefore, do some shuffling of the parts of cpu.h that
are only relevant for tcg/, and put them in tcg/helper-tcg.h

For FT0 and similar macros, put them in tcg/fpu-helper.c
since they are used only there.

Signed-off-by: Claudio Fontana <cfontana@suse.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201212155530.23098-8-cfontana@suse.de>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-12-16 15:50:33 -05:00