From: Wei Liu <wei.liu2@citrix.com>
To: Xen-devel <xen-devel@lists.xenproject.org>
Cc: George Dunlap <george.dunlap@eu.citrix.com>,
Andrew Cooper <andrew.cooper3@citrix.com>,
Wei Liu <wei.liu2@citrix.com>, Jan Beulich <JBeulich@suse.com>
Subject: [PATCH v3 02/21] x86/mm: carve out replace_grant_pv_mapping
Date: Thu, 20 Jul 2017 17:04:07 +0100 [thread overview]
Message-ID: <20170720160426.2343-3-wei.liu2@citrix.com> (raw)
In-Reply-To: <20170720160426.2343-1-wei.liu2@citrix.com>
And at once make it an inline function. Add declarations of
replace_grant_{hvm,pv}_mapping to respective header files.
The code movement will be done later.
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
---
xen/arch/x86/mm.c | 9 +++------
xen/include/asm-x86/grant_table.h | 10 ++++++++--
xen/include/asm-x86/hvm/grant_table.h | 8 ++++++++
xen/include/asm-x86/pv/grant_table.h | 8 ++++++++
4 files changed, 27 insertions(+), 8 deletions(-)
diff --git a/xen/arch/x86/mm.c b/xen/arch/x86/mm.c
index 532b1ee7e7..defc2c9bcc 100644
--- a/xen/arch/x86/mm.c
+++ b/xen/arch/x86/mm.c
@@ -4296,7 +4296,7 @@ int create_grant_pv_mapping(uint64_t addr, unsigned long frame,
return create_grant_va_mapping(addr, pte, current);
}
-static int replace_grant_p2m_mapping(
+int replace_grant_p2m_mapping(
uint64_t addr, unsigned long frame, uint64_t new_addr, unsigned int flags)
{
unsigned long gfn = (unsigned long)(addr >> PAGE_SHIFT);
@@ -4326,8 +4326,8 @@ static int replace_grant_p2m_mapping(
return GNTST_okay;
}
-int replace_grant_host_mapping(
- uint64_t addr, unsigned long frame, uint64_t new_addr, unsigned int flags)
+int replace_grant_pv_mapping(uint64_t addr, unsigned long frame,
+ uint64_t new_addr, unsigned int flags)
{
struct vcpu *curr = current;
l1_pgentry_t *pl1e, ol1e;
@@ -4335,9 +4335,6 @@ int replace_grant_host_mapping(
struct page_info *l1pg;
int rc;
- if ( paging_mode_external(current->domain) )
- return replace_grant_p2m_mapping(addr, frame, new_addr, flags);
-
if ( flags & GNTMAP_contains_pte )
{
if ( !new_addr )
diff --git a/xen/include/asm-x86/grant_table.h b/xen/include/asm-x86/grant_table.h
index 4aa22126d3..6c98672a4d 100644
--- a/xen/include/asm-x86/grant_table.h
+++ b/xen/include/asm-x86/grant_table.h
@@ -27,8 +27,14 @@ static inline int create_grant_host_mapping(uint64_t addr, unsigned long frame,
return create_grant_pv_mapping(addr, frame, flags, cache_flags);
}
-int replace_grant_host_mapping(
- uint64_t addr, unsigned long frame, uint64_t new_addr, unsigned int flags);
+static inline int replace_grant_host_mapping(uint64_t addr, unsigned long frame,
+ uint64_t new_addr,
+ unsigned int flags)
+{
+ if ( paging_mode_external(current->domain) )
+ return replace_grant_p2m_mapping(addr, frame, new_addr, flags);
+ return replace_grant_pv_mapping(addr, frame, new_addr, flags);
+}
#define gnttab_create_shared_page(d, t, i) \
do { \
diff --git a/xen/include/asm-x86/hvm/grant_table.h b/xen/include/asm-x86/hvm/grant_table.h
index 83202c219c..4b1afa179b 100644
--- a/xen/include/asm-x86/hvm/grant_table.h
+++ b/xen/include/asm-x86/hvm/grant_table.h
@@ -26,6 +26,8 @@
int create_grant_p2m_mapping(uint64_t addr, unsigned long frame,
unsigned int flags,
unsigned int cache_flags);
+int replace_grant_p2m_mapping(uint64_t addr, unsigned long frame,
+ uint64_t new_addr, unsigned int flags);
#else
@@ -38,6 +40,12 @@ static inline int create_grant_p2m_mapping(uint64_t addr, unsigned long frame,
return GNTST_general_error;
}
+int replace_grant_p2m_mapping(uint64_t addr, unsigned long frame,
+ uint64_t new_addr, unsigned int flags)
+{
+ return GNTST_general_error;
+}
+
#endif
#endif /* __X86_HVM_GRANT_TABLE_H__ */
diff --git a/xen/include/asm-x86/pv/grant_table.h b/xen/include/asm-x86/pv/grant_table.h
index 165ebce22f..c6474973cd 100644
--- a/xen/include/asm-x86/pv/grant_table.h
+++ b/xen/include/asm-x86/pv/grant_table.h
@@ -25,6 +25,8 @@
int create_grant_pv_mapping(uint64_t addr, unsigned long frame,
unsigned int flags, unsigned int cache_flags);
+int replace_grant_pv_mapping(uint64_t addr, unsigned long frame,
+ uint64_t new_addr, unsigned int flags);
#else
@@ -37,6 +39,12 @@ static inline int create_grant_pv_mapping(uint64_t addr, unsigned long frame,
return GNTST_general_error;
}
+int replace_grant_pv_mapping(uint64_t addr, unsigned long frame,
+ uint64_t new_addr, unsigned int flags)
+{
+ return GNTST_general_error;
+}
+
#endif
#endif /* __X86_PV_GRANT_TABLE_H__ */
--
2.11.0
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next prev parent reply other threads:[~2017-07-20 16:04 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-20 16:04 [PATCH v3 00/21] x86: refactor mm.c (the easy part) Wei Liu
2017-07-20 16:04 ` [PATCH v3 01/21] x86/mm: carve out create_grant_pv_mapping Wei Liu
2017-08-28 15:16 ` George Dunlap
2017-07-20 16:04 ` Wei Liu [this message]
2017-08-28 15:19 ` [PATCH v3 02/21] x86/mm: carve out replace_grant_pv_mapping George Dunlap
2017-07-20 16:04 ` [PATCH v3 03/21] x86/mm: split HVM grant table code to hvm/grant_table.c Wei Liu
2017-07-20 16:04 ` [PATCH v3 04/21] x86/mm: lift PAGE_CACHE_ATTRS to page.h Wei Liu
2017-07-20 16:04 ` [PATCH v3 05/21] x86/mm: document the return values from get_page_from_l*e Wei Liu
2017-07-20 16:04 ` [PATCH v3 06/21] x86: move pv_emul_is_mem_write to pv/emulate.c Wei Liu
2017-07-20 16:04 ` [PATCH v3 07/21] x86/mm: move and rename guest_get_eff{, kern}_l1e Wei Liu
2017-07-20 16:04 ` [PATCH v3 08/21] x86/mm: export get_page_from_pagenr Wei Liu
2017-07-20 16:04 ` [PATCH v3 09/21] x86/mm: rename and move update_intpte Wei Liu
2017-07-20 16:04 ` [PATCH v3 10/21] x86/mm: move {un, }adjust_guest_* to pv/mm.h Wei Liu
2017-07-20 16:04 ` [PATCH v3 11/21] x86/mm: split out writable pagetable emulation code Wei Liu
2017-07-20 16:04 ` [PATCH v3 12/21] x86/mm: split out readonly MMIO " Wei Liu
2017-07-20 16:04 ` [PATCH v3 13/21] x86/mm: remove the unused inclusion of pv/emulate.h Wei Liu
2017-07-20 16:04 ` [PATCH v3 14/21] x86/mm: move and rename guest_{, un}map_l1e Wei Liu
2017-07-20 16:04 ` [PATCH v3 15/21] x86/mm: split out PV grant table code Wei Liu
2017-07-20 16:04 ` [PATCH v3 16/21] x86/mm: split out descriptor " Wei Liu
2017-07-20 16:04 ` [PATCH v3 17/21] x86/mm: move compat descriptor handling code Wei Liu
2017-07-20 16:04 ` [PATCH v3 18/21] x86/mm: move and rename map_ldt_shadow_page Wei Liu
2017-07-20 16:04 ` [PATCH v3 19/21] x86/mm: factor out pv_arch_init_memory Wei Liu
2017-07-20 16:04 ` [PATCH v3 20/21] x86/mm: move l4 table setup code Wei Liu
2017-07-20 16:04 ` [PATCH v3 21/21] x86/mm: add "pv_" prefix to new_guest_cr3 Wei Liu
2017-07-30 6:26 ` [PATCH v3 00/21] x86: refactor mm.c (the easy part) Jan Beulich
2017-07-30 9:23 ` Wei Liu
2017-07-30 15:43 ` [PATCH v3 extra 00/11] x86: refactor mm.c: page APIs and hypercalls Wei Liu
2017-07-30 15:43 ` [PATCH v3 extra 01/11] x86: add pv_ prefix to {alloc, free}_page_type Wei Liu
2017-07-30 15:43 ` [PATCH v3 extra 02/11] x86/mm: export more get/put page functions Wei Liu
2017-07-30 15:43 ` [PATCH v3 extra 03/11] x86/mm: move and add pv_ prefix to create_pae_xen_mappings Wei Liu
2017-07-30 15:43 ` [PATCH v3 extra 04/11] x86/mm: move disallow_mask variable and macros Wei Liu
2017-07-30 15:43 ` [PATCH v3 extra 05/11] x86/mm: move pv_{alloc, free}_page_type Wei Liu
2017-07-30 15:43 ` [PATCH v3 extra 06/11] x86/mm: move and add pv_ prefix to invalidate_shadow_ldt Wei Liu
2017-07-30 15:43 ` [PATCH v3 extra 07/11] x86/mm: move PV hypercalls to pv/mm-hypercalls.c Wei Liu
2017-07-30 15:43 ` [PATCH v3 extra 08/11] x86/mm: remove the now unused inclusion of pv/mm.h Wei Liu
2017-07-30 15:43 ` [PATCH v3 extra 09/11] x86/mm: use put_page_type_preemptible in put_page_from_l{2, 3}e Wei Liu
2017-07-30 15:43 ` [PATCH v3 extra 10/11] x86/mm: move {get, put}_page_from_l{2, 3, 4}e Wei Liu
2017-07-30 15:43 ` [PATCH v3 extra 11/11] x86/mm: move description of x86 page table API to pv/mm.c Wei Liu
2017-07-31 9:58 ` [PATCH v3 extra 00/11] x86: refactor mm.c: page APIs and hypercalls Jan Beulich
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