| Message ID | 20110503184404.28731.92590.stgit@s20.home |
|---|---|
| State | New |
| Headers | show |
On Tue, May 03, 2011 at 12:48:09PM -0600, Alex Williamson wrote: > Required for regions mapped via qemu_ram_alloc_from_ptr(). VFIO > and ivshmem will make use of this to remove mappings when devices > are hot unplugged. > > Signed-off-by: Alex Williamson <alex.williamson@redhat.com> > --- > > Trying to clean out my patch queuer;, I've proposed this twice, Cam > has proposed this once, it's an obvious missing interface. Please > apply. > > cpu-common.h | 1 + > exec.c | 13 +++++++++++++ > 2 files changed, 14 insertions(+), 0 deletions(-) Thanks, applied. > diff --git a/cpu-common.h b/cpu-common.h > index 96c02ae..db98b6b 100644 > --- a/cpu-common.h > +++ b/cpu-common.h > @@ -50,6 +50,7 @@ ram_addr_t qemu_ram_alloc_from_ptr(DeviceState *dev, const char *name, > ram_addr_t size, void *host); > ram_addr_t qemu_ram_alloc(DeviceState *dev, const char *name, ram_addr_t size); > void qemu_ram_free(ram_addr_t addr); > +void qemu_ram_free_from_ptr(ram_addr_t addr); > void qemu_ram_remap(ram_addr_t addr, ram_addr_t length); > /* This should only be used for ram local to a device. */ > void *qemu_get_ram_ptr(ram_addr_t addr); > diff --git a/exec.c b/exec.c > index a0678a4..1870ee7 100644 > --- a/exec.c > +++ b/exec.c > @@ -2954,6 +2954,19 @@ ram_addr_t qemu_ram_alloc(DeviceState *dev, const char *name, ram_addr_t size) > return qemu_ram_alloc_from_ptr(dev, name, size, NULL); > } > > +void qemu_ram_free_from_ptr(ram_addr_t addr) > +{ > + RAMBlock *block; > + > + QLIST_FOREACH(block, &ram_list.blocks, next) { > + if (addr == block->offset) { > + QLIST_REMOVE(block, next); > + qemu_free(block); > + return; > + } > + } > +} > + > void qemu_ram_free(ram_addr_t addr) > { > RAMBlock *block; > > >
diff --git a/cpu-common.h b/cpu-common.h index 96c02ae..db98b6b 100644 --- a/cpu-common.h +++ b/cpu-common.h @@ -50,6 +50,7 @@ ram_addr_t qemu_ram_alloc_from_ptr(DeviceState *dev, const char *name, ram_addr_t size, void *host); ram_addr_t qemu_ram_alloc(DeviceState *dev, const char *name, ram_addr_t size); void qemu_ram_free(ram_addr_t addr); +void qemu_ram_free_from_ptr(ram_addr_t addr); void qemu_ram_remap(ram_addr_t addr, ram_addr_t length); /* This should only be used for ram local to a device. */ void *qemu_get_ram_ptr(ram_addr_t addr); diff --git a/exec.c b/exec.c index a0678a4..1870ee7 100644 --- a/exec.c +++ b/exec.c @@ -2954,6 +2954,19 @@ ram_addr_t qemu_ram_alloc(DeviceState *dev, const char *name, ram_addr_t size) return qemu_ram_alloc_from_ptr(dev, name, size, NULL); } +void qemu_ram_free_from_ptr(ram_addr_t addr) +{ + RAMBlock *block; + + QLIST_FOREACH(block, &ram_list.blocks, next) { + if (addr == block->offset) { + QLIST_REMOVE(block, next); + qemu_free(block); + return; + } + } +} + void qemu_ram_free(ram_addr_t addr) { RAMBlock *block;
Required for regions mapped via qemu_ram_alloc_from_ptr(). VFIO and ivshmem will make use of this to remove mappings when devices are hot unplugged. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> --- Trying to clean out my patch queuer;, I've proposed this twice, Cam has proposed this once, it's an obvious missing interface. Please apply. cpu-common.h | 1 + exec.c | 13 +++++++++++++ 2 files changed, 14 insertions(+), 0 deletions(-)