Searched hist:"3240 dd9a" (Results 1 – 1 of 1) sorted by relevance
/openbmc/qemu/hw/ppc/ |
H A D | spapr_hcall.c | 3240dd9a Thu Feb 18 03:15:54 CST 2016 Thomas Huth <thuth@redhat.com> hw/ppc/spapr: Implement the h_page_init hypercall This hypercall either initializes a page with zeros, or copies another page. According to LoPAPR, the i-cache of the page should also be flushed if using H_ICACHE_INVALIDATE or H_ICACHE_SYNCHRONIZE, and the d-cache should be synchronized to the RAM if the H_ICACHE_SYNCHRONIZE flag is used. For this, two new functions are introduced, kvmppc_dcbst_range() and kvmppc_icbi()_range, which use the corresponding assembler instructions to flush the caches if running with KVM on Power. If the code runs with TCG instead, the code only uses tb_flush(), assuming that this will be enough for synchronization. Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
|