| Message ID | 20241212185341.2857-13-philmd@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | accel/tcg: Extract user APIs out of 'exec/[cpu, exec]-all.h' | expand |
On 12/12/24 10:53, Philippe Mathieu-Daudé wrote: > Move declarations related to page protection under user > emulation from "exec/cpu-all.h" to "user/page-protection.h". > > Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> > --- > bsd-user/bsd-mem.h | 1 + > include/exec/cpu-all.h | 55 -------------------------------- > include/user/page-protection.h | 57 ++++++++++++++++++++++++++++++++++ > target/arm/tcg/mte_helper.c | 3 ++ > 4 files changed, 61 insertions(+), 55 deletions(-) > > diff --git a/bsd-user/bsd-mem.h b/bsd-user/bsd-mem.h > index eef6b222d9e..f5ec0de24ca 100644 > --- a/bsd-user/bsd-mem.h > +++ b/bsd-user/bsd-mem.h > @@ -57,6 +57,7 @@ > > #include "qemu-bsd.h" > #include "exec/page-protection.h" > +#include "user/page-protection.h" > > extern struct bsd_shm_regions bsd_shm_regions[]; > extern abi_ulong target_brk; > diff --git a/include/exec/cpu-all.h b/include/exec/cpu-all.h > index 3d97323893b..86cd40020c9 100644 > --- a/include/exec/cpu-all.h > +++ b/include/exec/cpu-all.h > @@ -130,21 +130,6 @@ extern const TargetPageBits target_page; > > int page_get_flags(target_ulong address); > > -/** > - * page_set_flags: > - * @start: first byte of range > - * @last: last byte of range > - * @flags: flags to set > - * Context: holding mmap lock > - * > - * Modify the flags of a page and invalidate the code if necessary. > - * The flag PAGE_WRITE_ORG is positioned automatically depending > - * on PAGE_WRITE. The mmap_lock should already be held. > - */ > -void page_set_flags(target_ulong start, target_ulong last, int flags); > - > -void page_reset_target_data(target_ulong start, target_ulong last); > - > /** > * page_check_range > * @start: first byte of range > @@ -157,46 +142,6 @@ void page_reset_target_data(target_ulong start, target_ulong last); > */ > bool page_check_range(target_ulong start, target_ulong last, int flags); > > -/** > - * page_check_range_empty: > - * @start: first byte of range > - * @last: last byte of range > - * Context: holding mmap lock > - * > - * Return true if the entire range [@start, @last] is unmapped. > - * The memory lock must be held so that the caller will can ensure > - * the result stays true until a new mapping can be installed. > - */ > -bool page_check_range_empty(target_ulong start, target_ulong last); > - > -/** > - * page_find_range_empty > - * @min: first byte of search range > - * @max: last byte of search range > - * @len: size of the hole required > - * @align: alignment of the hole required (power of 2) > - * > - * If there is a range [x, x+@len) within [@min, @max] such that > - * x % @align == 0, then return x. Otherwise return -1. > - * The memory lock must be held, as the caller will want to ensure > - * the returned range stays empty until a new mapping can be installed. > - */ > -target_ulong page_find_range_empty(target_ulong min, target_ulong max, > - target_ulong len, target_ulong align); > - > -/** > - * page_get_target_data(address) > - * @address: guest virtual address > - * > - * Return TARGET_PAGE_DATA_SIZE bytes of out-of-band data to associate > - * with the guest page at @address, allocating it if necessary. The > - * caller should already have verified that the address is valid. > - * > - * The memory will be freed when the guest page is deallocated, > - * e.g. with the munmap system call. > - */ > -void *page_get_target_data(target_ulong address) > - __attribute__((returns_nonnull)); > #endif > > CPUArchState *cpu_copy(CPUArchState *env); > diff --git a/include/user/page-protection.h b/include/user/page-protection.h > index ea11cf9e328..d21fab1aaf9 100644 > --- a/include/user/page-protection.h > +++ b/include/user/page-protection.h > @@ -18,6 +18,63 @@ > > void page_protect(tb_page_addr_t page_addr); > int page_unprotect(tb_page_addr_t address, uintptr_t pc); > + > +/** > + * page_set_flags: > + * @start: first byte of range > + * @last: last byte of range > + * @flags: flags to set > + * Context: holding mmap lock > + * > + * Modify the flags of a page and invalidate the code if necessary. > + * The flag PAGE_WRITE_ORG is positioned automatically depending > + * on PAGE_WRITE. The mmap_lock should already be held. > + */ > +void page_set_flags(target_ulong start, target_ulong last, int flags); > + > +void page_reset_target_data(target_ulong start, target_ulong last); > + > +/** > + * page_check_range_empty: > + * @start: first byte of range > + * @last: last byte of range > + * Context: holding mmap lock > + * > + * Return true if the entire range [@start, @last] is unmapped. > + * The memory lock must be held so that the caller will can ensure > + * the result stays true until a new mapping can be installed. > + */ > +bool page_check_range_empty(target_ulong start, target_ulong last); > + > +/** > + * page_find_range_empty > + * @min: first byte of search range > + * @max: last byte of search range > + * @len: size of the hole required > + * @align: alignment of the hole required (power of 2) > + * > + * If there is a range [x, x+@len) within [@min, @max] such that > + * x % @align == 0, then return x. Otherwise return -1. > + * The memory lock must be held, as the caller will want to ensure > + * the returned range stays empty until a new mapping can be installed. > + */ > +target_ulong page_find_range_empty(target_ulong min, target_ulong max, > + target_ulong len, target_ulong align); > + > +/** > + * page_get_target_data(address) > + * @address: guest virtual address > + * > + * Return TARGET_PAGE_DATA_SIZE bytes of out-of-band data to associate > + * with the guest page at @address, allocating it if necessary. The > + * caller should already have verified that the address is valid. > + * > + * The memory will be freed when the guest page is deallocated, > + * e.g. with the munmap system call. > + */ > +__attribute__((returns_nonnull)) > +void *page_get_target_data(target_ulong address); > + > typedef int (*walk_memory_regions_fn)(void *, target_ulong, > target_ulong, unsigned long); > > diff --git a/target/arm/tcg/mte_helper.c b/target/arm/tcg/mte_helper.c > index 9d2ba287eeb..ae037dc9143 100644 > --- a/target/arm/tcg/mte_helper.c > +++ b/target/arm/tcg/mte_helper.c > @@ -23,6 +23,9 @@ > #include "internals.h" > #include "exec/exec-all.h" > #include "exec/page-protection.h" > +#ifdef CONFIG_USER_ONLY > +#include "user/page-protection.h" > +#endif > #include "exec/ram_addr.h" > #include "exec/cpu_ldst.h" > #include "exec/helper-proto.h" Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
diff --git a/bsd-user/bsd-mem.h b/bsd-user/bsd-mem.h index eef6b222d9e..f5ec0de24ca 100644 --- a/bsd-user/bsd-mem.h +++ b/bsd-user/bsd-mem.h @@ -57,6 +57,7 @@ #include "qemu-bsd.h" #include "exec/page-protection.h" +#include "user/page-protection.h" extern struct bsd_shm_regions bsd_shm_regions[]; extern abi_ulong target_brk; diff --git a/include/exec/cpu-all.h b/include/exec/cpu-all.h index 3d97323893b..86cd40020c9 100644 --- a/include/exec/cpu-all.h +++ b/include/exec/cpu-all.h @@ -130,21 +130,6 @@ extern const TargetPageBits target_page; int page_get_flags(target_ulong address); -/** - * page_set_flags: - * @start: first byte of range - * @last: last byte of range - * @flags: flags to set - * Context: holding mmap lock - * - * Modify the flags of a page and invalidate the code if necessary. - * The flag PAGE_WRITE_ORG is positioned automatically depending - * on PAGE_WRITE. The mmap_lock should already be held. - */ -void page_set_flags(target_ulong start, target_ulong last, int flags); - -void page_reset_target_data(target_ulong start, target_ulong last); - /** * page_check_range * @start: first byte of range @@ -157,46 +142,6 @@ void page_reset_target_data(target_ulong start, target_ulong last); */ bool page_check_range(target_ulong start, target_ulong last, int flags); -/** - * page_check_range_empty: - * @start: first byte of range - * @last: last byte of range - * Context: holding mmap lock - * - * Return true if the entire range [@start, @last] is unmapped. - * The memory lock must be held so that the caller will can ensure - * the result stays true until a new mapping can be installed. - */ -bool page_check_range_empty(target_ulong start, target_ulong last); - -/** - * page_find_range_empty - * @min: first byte of search range - * @max: last byte of search range - * @len: size of the hole required - * @align: alignment of the hole required (power of 2) - * - * If there is a range [x, x+@len) within [@min, @max] such that - * x % @align == 0, then return x. Otherwise return -1. - * The memory lock must be held, as the caller will want to ensure - * the returned range stays empty until a new mapping can be installed. - */ -target_ulong page_find_range_empty(target_ulong min, target_ulong max, - target_ulong len, target_ulong align); - -/** - * page_get_target_data(address) - * @address: guest virtual address - * - * Return TARGET_PAGE_DATA_SIZE bytes of out-of-band data to associate - * with the guest page at @address, allocating it if necessary. The - * caller should already have verified that the address is valid. - * - * The memory will be freed when the guest page is deallocated, - * e.g. with the munmap system call. - */ -void *page_get_target_data(target_ulong address) - __attribute__((returns_nonnull)); #endif CPUArchState *cpu_copy(CPUArchState *env); diff --git a/include/user/page-protection.h b/include/user/page-protection.h index ea11cf9e328..d21fab1aaf9 100644 --- a/include/user/page-protection.h +++ b/include/user/page-protection.h @@ -18,6 +18,63 @@ void page_protect(tb_page_addr_t page_addr); int page_unprotect(tb_page_addr_t address, uintptr_t pc); + +/** + * page_set_flags: + * @start: first byte of range + * @last: last byte of range + * @flags: flags to set + * Context: holding mmap lock + * + * Modify the flags of a page and invalidate the code if necessary. + * The flag PAGE_WRITE_ORG is positioned automatically depending + * on PAGE_WRITE. The mmap_lock should already be held. + */ +void page_set_flags(target_ulong start, target_ulong last, int flags); + +void page_reset_target_data(target_ulong start, target_ulong last); + +/** + * page_check_range_empty: + * @start: first byte of range + * @last: last byte of range + * Context: holding mmap lock + * + * Return true if the entire range [@start, @last] is unmapped. + * The memory lock must be held so that the caller will can ensure + * the result stays true until a new mapping can be installed. + */ +bool page_check_range_empty(target_ulong start, target_ulong last); + +/** + * page_find_range_empty + * @min: first byte of search range + * @max: last byte of search range + * @len: size of the hole required + * @align: alignment of the hole required (power of 2) + * + * If there is a range [x, x+@len) within [@min, @max] such that + * x % @align == 0, then return x. Otherwise return -1. + * The memory lock must be held, as the caller will want to ensure + * the returned range stays empty until a new mapping can be installed. + */ +target_ulong page_find_range_empty(target_ulong min, target_ulong max, + target_ulong len, target_ulong align); + +/** + * page_get_target_data(address) + * @address: guest virtual address + * + * Return TARGET_PAGE_DATA_SIZE bytes of out-of-band data to associate + * with the guest page at @address, allocating it if necessary. The + * caller should already have verified that the address is valid. + * + * The memory will be freed when the guest page is deallocated, + * e.g. with the munmap system call. + */ +__attribute__((returns_nonnull)) +void *page_get_target_data(target_ulong address); + typedef int (*walk_memory_regions_fn)(void *, target_ulong, target_ulong, unsigned long); diff --git a/target/arm/tcg/mte_helper.c b/target/arm/tcg/mte_helper.c index 9d2ba287eeb..ae037dc9143 100644 --- a/target/arm/tcg/mte_helper.c +++ b/target/arm/tcg/mte_helper.c @@ -23,6 +23,9 @@ #include "internals.h" #include "exec/exec-all.h" #include "exec/page-protection.h" +#ifdef CONFIG_USER_ONLY +#include "user/page-protection.h" +#endif #include "exec/ram_addr.h" #include "exec/cpu_ldst.h" #include "exec/helper-proto.h"
Move declarations related to page protection under user emulation from "exec/cpu-all.h" to "user/page-protection.h". Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> --- bsd-user/bsd-mem.h | 1 + include/exec/cpu-all.h | 55 -------------------------------- include/user/page-protection.h | 57 ++++++++++++++++++++++++++++++++++ target/arm/tcg/mte_helper.c | 3 ++ 4 files changed, 61 insertions(+), 55 deletions(-)