- 16 4月, 2012 3 次提交
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由 Stefan Weil 提交于
Replace all type casts to 'long' or 'unsigned long' by 'intptr_t' or 'uintptr_t'. For type casts which are only used to extract the lower bits of an address or to modify those bits, signedness does not matter. There I always use 'uintptr_t'. Signed-off-by: NStefan Weil <sw@weilnetz.de>
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由 Stefan Weil 提交于
The MinGW-w64 compiler allows __attribute__((aligned (32)). Signed-off-by: NStefan Weil <sw@weilnetz.de>
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由 Stefan Weil 提交于
w64 needs uintptr_t instead of unsigned long. For other hosts, nothing changes. Signed-off-by: NStefan Weil <sw@weilnetz.de>
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- 14 4月, 2012 2 次提交
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由 Max Filippov 提交于
Allow TB invalidation by its physical address, extract implementation from the breakpoint_invalidate function. Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com> Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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由 Blue Swirl 提交于
Use uintptr_t instead of void * or unsigned long in several op related functions, env->mem_io_pc and GETPC() macro. Reviewed-by: NStefan Weil <sw@weilnetz.de> Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 07 4月, 2012 1 次提交
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由 Stefan Weil 提交于
QEMU host addresses must use uintptr_t to be portable for hosts with an unusual size of long (w64). tb_jmp_offset is an uint16_t value, therefore the local variable offset in function tb_set_jmp_target was changed from unsigned long to uint16_t. The type cast to long in function tb_add_jump now also uses uintptr_t. For the bit operation used here, the signedness of the type cast does not matter. Some remaining unsigned long values are either only used for ARM assembler code or will be fixed in a later patch for PPC. v2: Fix signature of tb_find_pc in exec.c, too (hint from Blue Swirl, thanks). There remain lots of other long / unsigned long in exec.c which must be replaced by uintptr_t. This will be done in a separate patch. Here only one of these type casts is fixed. v3: Also fix signature of page_unprotect. Signed-off-by: NStefan Weil <sw@weilnetz.de> Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 24 3月, 2012 1 次提交
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由 Richard Henderson 提交于
This allows us to generate unwind info for the dynamicly generated code in the code_gen_buffer. Only i386 is converted at this point. Signed-off-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 20 3月, 2012 1 次提交
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由 Anthony PERARD 提交于
In cpu_physical_memory_rw, a change has been introduced and qemu_get_ram_ptr is no longuer called with the ram addr we want to access, but only with the section address. This patch fixes this. (All other call to qemu_get_ram_ptr are already called with the right address.) This patch fixes Xen guest. Signed-off-by: NAnthony PERARD <anthony.perard@citrix.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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- 19 3月, 2012 2 次提交
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由 Avi Kivity 提交于
The code to get the ram_addr from a (tlb entry, vaddr) pair checks that the resulting memory is not MMIO, but neglects to check whether the region is hidden by a watchpoint page. Add the missing check. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
A couple of code paths check the lower bits of CPUTLBEntry::addr_write against io_mem_ram as a way of looking for a dirty RAM page. This works by accident since the value is zero, which matches all clear bits for TLB_INVALID, TLB_MMIO, and TLB_NOTDIRTY (indicating dirty RAM). Make it work by design by checking for the proper bits. Signed-off-by: NAvi Kivity <avi@redhat.com>
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- 18 3月, 2012 1 次提交
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由 Blue Swirl 提交于
Optionally, make memory access helpers take a parameter for CPUState instead of relying on global env. On most targets, perform simple moves to reorder registers. On i386, switch from regparm(3) calling convention to standard stack-based version. Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 15 3月, 2012 1 次提交
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由 Andreas Färber 提交于
Scripted conversion: for file in *.[hc] hw/*.[hc] hw/kvm/*.[hc] linux-user/*.[hc] linux-user/m68k/*.[hc] bsd-user/*.[hc] darwin-user/*.[hc] tcg/*/*.[hc] target-*/cpu.h; do sed -i "s/CPUState/CPUArchState/g" $file done All occurrences of CPUArchState are expected to be replaced by QOM CPUState, once all targets are QOM'ified and common fields have been extracted. Signed-off-by: NAndreas Färber <afaerber@suse.de> Reviewed-by: NAnthony Liguori <aliguori@us.ibm.com>
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- 09 3月, 2012 3 次提交
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由 Avi Kivity 提交于
The return value of cpu_register_io_memory() is no longer used anywhere, so we can remove it and all associated data and code. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
Instead of indirecting via io_mem_region, dispatch directly through the MemoryRegion obtained from the iotlb or phys_page_find(). Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
get_page_addr_code() reads a code tlb entry, but interprets it as an iotlb entry. This works by accident since the low bits of a RAM code tlb entry are clear, and match a RAM iotlb entry. This accident is about to unhappen, so fix the code to use an iotlb entry (using the code entry with TLB_MMIO may fail if the page is a watchpoint). Signed-off-by: NAvi Kivity <avi@redhat.com>
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- 08 3月, 2012 2 次提交
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由 Avi Kivity 提交于
A step towards eliminating io indices. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
We'd like to store the section index in the iotlb, so we can't adjust it before returning. Return an unadjusted section and instead introduce section_addr(), which does the adjustment later. Signed-off-by: NAvi Kivity <avi@redhat.com>
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- 05 3月, 2012 1 次提交
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由 Avi Kivity 提交于
Commit e58ac72b6a0 ("ioport: change portio_list not to use memory_region_set_offset()") started using aliases of I/O memory regions. Since the IORange used for the I/O was contained in the target region, the alias information (specifically, the offset into the region) was lost. This broke -vga std. Fix by allocating an independent object to hold the IORange and also the new offset. Note that I/O memory regions were conceptually broken wrt aliases in a different way: an alias can cause the same region to appear twice in an address space, but we had just one IORange to service it. This patch fixes that problem as well, since we can now have multiple IORange/MemoryRegion associations. Signed-off-by: NAvi Kivity <avi@redhat.com>
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- 29 2月, 2012 21 次提交
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由 Avi Kivity 提交于
When storing large contiguous ranges in phys_map, all values tend to be the same pointers to a single MemoryRegionSection. Collapse them by marking nodes with level > 0 as leaves. This reduces tree memory usage dramatically. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
They have the same type, unify them. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
Setting multiple pages at once requires backtracking to previous nodes; easiest to achieve via recursion. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
By giving the function the value we want to set, we make it more flexible for the next patch. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
Instead of considering subpage on a per-page basis, split each section into a subpage head, multipage body, and subpage tail, and register each separately. This simplifies the registration functions. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
We'll change phys_page_find_alloc() soon, but phys_page_find() doesn't need to bear the consequences. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
We no longer describe memory in terms of individual pages; use sections throughout instead. PhysPageDesc no longer used - remove. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
This way, if we have several changes in a single transaction, we flush just once. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
Identical except that the second branch knows its not modifying an existing subpage. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
If the first subpage installed in a page is RAM, then we install it as a full page, instead of a subpage. Fix by not special casing RAM. The issue dates to commit db7b5426, which introduced subpages. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
Use an expanding vector to store nodes. Allocation is baroque to g_renew() potentially invalidating pointers; this will be addressed later. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
Instead of storing PhysPageDesc, store pointers to MemoryRegionSections. The various offsets (phys_offset & ~TARGET_PAGE_MASK, PHYS_OFFSET & TARGET_PAGE_MASK, region_offset) can all be synthesized from the information in a MemoryRegionSection. Adjust phys_page_find() to synthesize a PhysPageDesc. The upshot is that phys_map now contains uniform values, so it's easier to generate and compress. The end result is somewhat clumsy but this will be improved as we we propagate MemoryRegionSections throughout the code instead of transforming them to PhysPageDesc. The MemoryRegionSection pointers are stored as uint16_t offsets in an array. This saves space (when we also compress node pointers) and is more cache friendly. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
This lays the groundwork for storing leaf data in intermediate levels, saving space. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
L1 and the lower levels in l1_phys_map are equivalent, except that L1 has a different size, and is always allocated. Simplify the code by removing L1. This leaves us with a tree composed solely of L2 tables, but that problem can be renamed away later. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
Instead of incrementally building the memory map, rebuild it every time. This allows later simplification, since the code need not consider overlaying a previous mapping. It is also RCU friendly. With large memory guests this can get expensive, since the operation is O(mem size), but this will be optimized later. As a side effect subpage and L2 leaks are fixed here. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
Current memory listeners are incremental; that is, they are expected to maintain their own state, and receive callbacks for changes to that state. This patch adds support for stateless listeners; these work by receiving a ->begin() callback (which tells them that new state is coming), a sequence of ->region_add() and ->region_nop() callbacks, and then a ->commit() callback which signifies the end of the new state. They should ignore ->region_del() callbacks. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
The memory and I/O address spaces do different things, so split them into two memory listeners. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
Ignore any regions not belonging to a specified address space. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
This transforms memory.c into a library which can then be unit tested easily, by feeding it inputs and listening to its outputs. Signed-off-by: NAvi Kivity <avi@redhat.com> Reviewed-by: NRichard Henderson <rth@twiddle.net>
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由 Avi Kivity 提交于
It can be derived from the MemoryRegion itself (which is why it is not used there). Signed-off-by: NAvi Kivity <avi@redhat.com> Reviewed-by: NRichard Henderson <rth@twiddle.net>
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- 21 2月, 2012 1 次提交
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由 Max Filippov 提交于
Make cpu_watchpoint_insert accept watchpoints of any power-of-two size up to the target page size. Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com>
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