From: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> To: joro@8bytes.org Cc: paul@codesourcery.com, blauwirbel@gmail.com, anthony@codemonkey.ws, avi@redhat.com, kvm@vger.kernel.org, qemu-devel@nongnu.org, Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> Subject: [PATCH 1/7] pci: add range_covers_range() Date: Sun, 15 Aug 2010 22:27:16 +0300 [thread overview] Message-ID: <1281900442-29971-2-git-send-email-eduard.munteanu@linux360.ro> (raw) In-Reply-To: <1281900442-29971-1-git-send-email-eduard.munteanu@linux360.ro> This helper function allows map invalidation code to determine which maps must be invalidated. Signed-off-by: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> --- hw/pci.h | 10 ++++++++++ 1 files changed, 10 insertions(+), 0 deletions(-) diff --git a/hw/pci.h b/hw/pci.h index 4bd8a1a..5a6cdb5 100644 --- a/hw/pci.h +++ b/hw/pci.h @@ -419,6 +419,16 @@ static inline int range_covers_byte(uint64_t offset, uint64_t len, return offset <= byte && byte <= range_get_last(offset, len); } +/* Check whether a given range completely covers another. */ +static inline int range_covers_range(uint64_t first_big, uint64_t len_big, + uint64_t first_small, uint64_t len_small) +{ + uint64_t last_big = range_get_last(first_big, len_big); + uint64_t last_small = range_get_last(first_small, len_small); + + return first_big <= first_small && last_small <= last_big; +} + /* Check whether 2 given ranges overlap. * Undefined if ranges that wrap around 0. */ static inline int ranges_overlap(uint64_t first1, uint64_t len1, -- 1.7.1
WARNING: multiple messages have this Message-ID (diff)
From: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> To: joro@8bytes.org Cc: kvm@vger.kernel.org, qemu-devel@nongnu.org, blauwirbel@gmail.com, paul@codesourcery.com, Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>, avi@redhat.com Subject: [Qemu-devel] [PATCH 1/7] pci: add range_covers_range() Date: Sun, 15 Aug 2010 22:27:16 +0300 [thread overview] Message-ID: <1281900442-29971-2-git-send-email-eduard.munteanu@linux360.ro> (raw) In-Reply-To: <1281900442-29971-1-git-send-email-eduard.munteanu@linux360.ro> This helper function allows map invalidation code to determine which maps must be invalidated. Signed-off-by: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> --- hw/pci.h | 10 ++++++++++ 1 files changed, 10 insertions(+), 0 deletions(-) diff --git a/hw/pci.h b/hw/pci.h index 4bd8a1a..5a6cdb5 100644 --- a/hw/pci.h +++ b/hw/pci.h @@ -419,6 +419,16 @@ static inline int range_covers_byte(uint64_t offset, uint64_t len, return offset <= byte && byte <= range_get_last(offset, len); } +/* Check whether a given range completely covers another. */ +static inline int range_covers_range(uint64_t first_big, uint64_t len_big, + uint64_t first_small, uint64_t len_small) +{ + uint64_t last_big = range_get_last(first_big, len_big); + uint64_t last_small = range_get_last(first_small, len_small); + + return first_big <= first_small && last_small <= last_big; +} + /* Check whether 2 given ranges overlap. * Undefined if ranges that wrap around 0. */ static inline int ranges_overlap(uint64_t first1, uint64_t len1, -- 1.7.1
next prev parent reply other threads:[~2010-08-15 19:30 UTC|newest] Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top 2010-08-15 19:27 [PATCH 0/7] AMD IOMMU emulation patches v3 Eduard - Gabriel Munteanu 2010-08-15 19:27 ` [Qemu-devel] " Eduard - Gabriel Munteanu 2010-08-15 19:27 ` Eduard - Gabriel Munteanu [this message] 2010-08-15 19:27 ` [Qemu-devel] [PATCH 1/7] pci: add range_covers_range() Eduard - Gabriel Munteanu 2010-08-18 4:39 ` Isaku Yamahata 2010-08-18 4:39 ` Isaku Yamahata 2010-08-15 19:27 ` [PATCH 2/7] pci: memory access API and IOMMU support Eduard - Gabriel Munteanu 2010-08-15 19:27 ` [Qemu-devel] " Eduard - Gabriel Munteanu 2010-08-18 5:02 ` Isaku Yamahata 2010-08-18 5:02 ` Isaku Yamahata 2010-08-15 19:27 ` [PATCH 3/7] AMD IOMMU emulation Eduard - Gabriel Munteanu 2010-08-15 19:27 ` [Qemu-devel] " Eduard - Gabriel Munteanu 2010-08-16 17:57 ` Blue Swirl 2010-08-16 17:57 ` [Qemu-devel] " Blue Swirl 2010-08-15 19:27 ` [PATCH 4/7] ide: use the PCI memory access interface Eduard - Gabriel Munteanu 2010-08-15 19:27 ` [Qemu-devel] " Eduard - Gabriel Munteanu 2010-08-15 19:27 ` [PATCH 5/7] rtl8139: " Eduard - Gabriel Munteanu 2010-08-15 19:27 ` [Qemu-devel] " Eduard - Gabriel Munteanu 2010-08-15 19:27 ` [PATCH 6/7] eepro100: " Eduard - Gabriel Munteanu 2010-08-15 19:27 ` [Qemu-devel] " Eduard - Gabriel Munteanu 2010-08-15 19:27 ` [PATCH 7/7] ac97: " Eduard - Gabriel Munteanu 2010-08-15 19:27 ` [Qemu-devel] " Eduard - Gabriel Munteanu 2010-08-15 20:42 ` malc 2010-08-15 20:42 ` malc 2010-08-16 1:47 ` [PATCH 0/7] AMD IOMMU emulation patches v3 Anthony Liguori 2010-08-16 1:47 ` [Qemu-devel] " Anthony Liguori
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