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| author | Joe Epstein <jepstein98@gmail.com> | 2011-01-07 11:54:45 +0000 |
|---|---|---|
| committer | Joe Epstein <jepstein98@gmail.com> | 2011-01-07 11:54:45 +0000 |
| commit | 81f8af44baecf94a72d08cde1619f5af63c1b3a7 (patch) | |
| tree | e4567ecb0212bfbd8ca85dd0c2cf01e601ec14c4 /tools/libxc/xenctrl.h | |
| parent | b405792883f6e2f3001328865af6960968441ad6 (diff) | |
| download | xen-81f8af44baecf94a72d08cde1619f5af63c1b3a7.tar.gz xen-81f8af44baecf94a72d08cde1619f5af63c1b3a7.tar.bz2 xen-81f8af44baecf94a72d08cde1619f5af63c1b3a7.zip | |
mem_access: HVMOPs for setting mem access
* Creates HVMOPs for setting and getting memory access. The hypercalls
can set individual pages or the default access for new/refreshed
pages.
* Added functions to libxc to access these hypercalls.
Signed-off-by: Joe Epstein <jepstein98@gmail.com>
Reviewed-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Acked-by: Keir Fraser <keir@xen.org>
Acked-by: Tim Deegan <Tim.Deegan@citrix.com>
Diffstat (limited to 'tools/libxc/xenctrl.h')
| -rw-r--r-- | tools/libxc/xenctrl.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/tools/libxc/xenctrl.h b/tools/libxc/xenctrl.h index 4827303b73..aec258662f 100644 --- a/tools/libxc/xenctrl.h +++ b/tools/libxc/xenctrl.h @@ -701,6 +701,19 @@ int xc_domain_setdebugging(xc_interface *xch, uint32_t domid, unsigned int enable); +/** + * This function sets or clears the requirement that an access memory + * event listener is required on the domain. + * + * @parm xch a handle to an open hypervisor interface + * @parm domid the domain id to send trigger + * @parm enable true to require a listener + * return 0 on success, -1 on failure + */ +int xc_domain_set_access_required(xc_interface *xch, + uint32_t domid, + unsigned int required); + /* * CPUPOOL MANAGEMENT FUNCTIONS */ @@ -1398,6 +1411,19 @@ int xc_hvm_modified_memory( int xc_hvm_set_mem_type( xc_interface *xch, domid_t dom, hvmmem_type_t memtype, uint64_t first_pfn, uint64_t nr); +/* + * Set a range of memory to a specific access. + * Allowed types are HVMMEM_access_default, HVMMEM_access_n, any combination of + * HVM_access_ + (rwx), and HVM_access_rx2rw + */ +int xc_hvm_set_mem_access( + xc_interface *xch, domid_t dom, hvmmem_access_t memaccess, uint64_t first_pfn, uint64_t nr); + +/* + * Gets the mem access for the given page (returned in memacess on success) + */ +int xc_hvm_get_mem_access( + xc_interface *xch, domid_t dom, uint64_t pfn, hvmmem_access_t* memaccess); /* * LOGGING AND ERROR REPORTING @@ -1704,6 +1730,8 @@ int xc_mem_paging_evict(xc_interface *xch, domid_t domain_id, unsigned long gfn) int xc_mem_paging_prep(xc_interface *xch, domid_t domain_id, unsigned long gfn); int xc_mem_paging_resume(xc_interface *xch, domid_t domain_id, unsigned long gfn); +int xc_mem_access_resume(xc_interface *xch, domid_t domain_id, + unsigned long gfn); /** * memshr operations |