Merge branch 'gdt-idt-cleanup' into master

x86: Move 32-bit GDT and TSS to desc.c

Move the GDT and TSS data structures from x86/cstart.S to
lib/x86/desc.c, for consistency with the 64-bit version.

Signed-off-by: Paolo Bonzini <pbonzini@redh

x86: Move 32-bit GDT and TSS to desc.c

Move the GDT and TSS data structures from x86/cstart.S to
lib/x86/desc.c, for consistency with the 64-bit version.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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x86: unify name of 32-bit and 64-bit GDT

There's no need to distinguish gdt32 and gdt64, since the same C functions
operate on both and selector numbers are mostly unified between 32-
and 64-bit ver

x86: unify name of 32-bit and 64-bit GDT

There's no need to distinguish gdt32 and gdt64, since the same C functions
operate on both and selector numbers are mostly unified between 32-
and 64-bit versions.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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replace tss_descr global with a function

tss_descr is declared as a struct descriptor_table_ptr but it is actualy
pointing to an _entry_ in the GDT. Also it is different per CPU, but
tss_descr does

replace tss_descr global with a function

tss_descr is declared as a struct descriptor_table_ptr but it is actualy
pointing to an _entry_ in the GDT. Also it is different per CPU, but
tss_descr does not recognize that. Fix both by reusing the code
(already present e.g. in the vmware_backdoors test) that extracts
the base from the GDT entry; and also provide a helper to retrieve
the limit, which is needed in vmx.c.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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unify field names and definitions for GDT descriptors

Use the same names and definitions (apart from the high base field)
for GDT descriptors in both 32-bit and 64-bit code. The next patch
will als

unify field names and definitions for GDT descriptors

Use the same names and definitions (apart from the high base field)
for GDT descriptors in both 32-bit and 64-bit code. The next patch
will also reuse gdt_entry_t in the 16-byte struct definition, for now
some duplication remains.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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lib: start moving vmalloc to generic code

For now, vmalloc provides a primitive that allocates contiguous virtual
address. Together with a page allocator that allocates single
physical memory pages

lib: start moving vmalloc to generic code

For now, vmalloc provides a primitive that allocates contiguous virtual
address. Together with a page allocator that allocates single
physical memory pages, it will provide an implementation of
alloc_ops for when an MMU is enabled.

Before doing that, however, we need to move the page allocator and
give lib/alloc.c's malloc feature parity with lib/x86/vm.c's vmalloc.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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x86: fix printf format warnings

Signed-off-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1457008388-12749-5-git-send-email-drjones@redhat.com>
[Fix c

x86: fix printf format warnings

Signed-off-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1457008388-12749-5-git-send-email-drjones@redhat.com>
[Fix conflicts with "x86: clean up exit use, use abort". - Paolo
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Conflicts:

lib/x86/desc.c

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clean root dir of all x86-ness

Remove all references to x86 from the root dir (except from in
configure). Also remove references from the root dir README
by moving that documentation to the x86/REA

clean root dir of all x86-ness

Remove all references to x86 from the root dir (except from in
configure). Also remove references from the root dir README
by moving that documentation to the x86/README, and touch up
the READMEs at the same time.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
[Drop --test-dir, adjust includes. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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x86: taskswitch: use desc library

The APIs in desc.c make it much simpler to understand what the test
is doing.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Initial commit from qemu-kvm.git kvm/test/

Signed-off-by: Avi Kivity <avi@redhat.com>