Re: x86/apic: MSI address malformed for "flat" driver

2018-09-10 Thread Cyril Novikov
On 9/7/2018 12:11 PM, Thomas Gleixner wrote: On Thu, 6 Sep 2018, Philipp Eppelt wrote: The "flat" driver defines the MSI addressing scheme to be used as logical addressing in flat mode. The MSI msg address is composed accordingly, but sets MSI_ADDR_REDIRECTION_CPU which is a zero at bit[3]. C

Re: [PATCH v4 02/10] asm/nospec, array_ptr: sanitize speculative array de-references

2018-01-24 Thread Cyril Novikov
On 1/18/2018 4:01 PM, Dan Williams wrote: 'array_ptr' is proposed as a generic mechanism to mitigate against Spectre-variant-1 attacks, i.e. an attack that bypasses boundary checks via speculative execution). The 'array_ptr' implementation is expected to be safe for current generation cpus across