Revision 32ffa4f71e10009498ae6b54da65ab316db967bd authored by Axel Rasmussen on 19 May 2021, 20:03:33 UTC, committed by Paolo Bonzini on 27 May 2021, 11:45:55 UTC
This is a preparatory commit needed before we can use different kinds of backing pages for guest memory. Previously, we used perf_test_args.host_page_size, which is the host's native page size (commonly 4K). For VM_MEM_SRC_ANONYMOUS this turns out to be okay, but in a follow-up commit we want to allow using different kinds of backing memory. Take VM_MEM_SRC_ANONYMOUS_HUGETLB for example. Without this change, if we used that backing page type, when we issued a UFFDIO_COPY ioctl we'd only do so with 4K, rather than the full 2M of a backing hugepage. In this case, UFFDIO_COPY returns -EINVAL (__mcopy_atomic_hugetlb checks the size). Signed-off-by: Axel Rasmussen <axelrasmussen@google.com> Message-Id: <20210519200339.829146-5-axelrasmussen@google.com> Reviewed-by: Ben Gardon <bgardon@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
1 parent 25408e5
r819xU_firmware.h
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __INC_FIRMWARE_H
#define __INC_FIRMWARE_H
#define GET_COMMAND_PACKET_FRAG_THRESHOLD(v) \
(4 * ((v) / 4) - 8 - USB_HWDESC_HEADER_LEN)
enum firmware_init_step_e {
FW_INIT_STEP0_BOOT = 0,
FW_INIT_STEP1_MAIN = 1,
FW_INIT_STEP2_DATA = 2,
};
enum opt_rst_type_e {
OPT_SYSTEM_RESET = 0,
OPT_FIRMWARE_RESET = 1,
};
#endif
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